diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4da30d59b..a0cfeed81 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,6 +15,19 @@ jobs:
     env:
       apps: "smp-server xftp-server ntf-server xftp"
     runs-on: ubuntu-${{ matrix.os }}
+    services:
+      postgres:
+        image: postgres:15
+        env:
+          POSTGRES_HOST_AUTH_METHOD: trust # Allows passwordless access
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          # Maps tcp port 5432 on service container to the host
+          - 5432:5432
     strategy:
       fail-fast: false
       matrix:
@@ -43,9 +56,24 @@ jobs:
         shell: bash
         run: docker run -t -d --name builder local
 
-      - name: Build binaries
+      - name: Build smp-server (postgresql) and tests
         shell: bash
-        run: docker exec -t -e apps="$apps" builder sh -c 'cabal build --enable-tests && mkdir /out && for i in $apps; do bin=$(find /project/dist-newstyle -name "$i" -type f -executable); strip "$bin"; chmod +x "$bin"; mv "$bin" /out/; done'
+        run: docker exec -t builder sh -c 'cabal build --enable-tests -fserver_postgres && mkdir -p /out &&  for i in smp-server simplexmq-test; do bin=$(find /project/dist-newstyle -name "$i" -type f -executable); chmod +x "$bin"; mv "$bin" /out/; done; strip /out/smp-server'
+
+      - name: Copy simplexmq-test from container
+        shell: bash
+        run: |
+          docker cp builder:/out/simplexmq-test .
+
+      - name: Copy smp-server (postgresql) from container and prepare it
+        if: startsWith(github.ref, 'refs/tags/v')
+        shell: bash
+        run: |
+          docker cp builder:/out/smp-server ./smp-server-postgres-ubuntu-${{ matrix.platform_name }}
+
+      - name: Build everything else (standard)
+        shell: bash
+        run: docker exec -t -e apps="$apps" builder sh -c 'cabal build && mkdir -p /out && for i in $apps; do bin=$(find /project/dist-newstyle -name "$i" -type f -executable); strip "$bin"; chmod +x "$bin"; mv "$bin" /out/; done'
 
       - name: Copy binaries from container and prepare them
         if: startsWith(github.ref, 'refs/tags/v')
@@ -79,6 +107,7 @@ jobs:
           files: |
             LICENSE
             smp-server-ubuntu-${{ matrix.platform_name }}
+            smp-server-postgres-ubuntu-${{ matrix.platform_name }}
             ntf-server-ubuntu-${{ matrix.platform_name }}
             xftp-server-ubuntu-${{ matrix.platform_name }}
             xftp-ubuntu-${{ matrix.platform_name }}
@@ -88,7 +117,7 @@ jobs:
 
       - name: Test
         shell: bash
+        env:
+          PGHOST: localhost
         run: |
-          docker exec -t builder sh -c 'mv $(find /project/dist-newstyle -name "simplexmq-test" -type f -executable) /out/'
-          docker cp builder:/out/simplexmq-test .
           ./simplexmq-test
diff --git a/Dockerfile.build b/Dockerfile.build
index fb7678f44..c7ddea11d 100644
--- a/Dockerfile.build
+++ b/Dockerfile.build
@@ -8,7 +8,7 @@ ARG GHC=9.6.3
 ARG CABAL=3.14.1.1
 
 # Install curl, git and and simplexmq dependencies
-RUN apt-get update && apt-get install -y curl git sqlite3 libsqlite3-dev build-essential libgmp3-dev zlib1g-dev llvm llvm-dev libnuma-dev libssl-dev
+RUN apt-get update && apt-get install -y curl libpq-dev git sqlite3 libsqlite3-dev build-essential libgmp3-dev zlib1g-dev llvm llvm-dev libnuma-dev libssl-dev
 
 # Specify bootstrap Haskell versions
 ENV BOOTSTRAP_HASKELL_GHC_VERSION=${GHC}
diff --git a/simplexmq.cabal b/simplexmq.cabal
index 5dddd71af..6bbf363bb 100644
--- a/simplexmq.cabal
+++ b/simplexmq.cabal
@@ -72,6 +72,11 @@ flag client_postgres
   manual: True
   default: False
 
+flag server_postgres
+  description: Build server with support of PostgreSQL.
+  manual: True
+  default: False
+
 library
   exposed-modules:
       Simplex.FileTransfer.Agent
@@ -101,6 +106,7 @@ library
       Simplex.Messaging.Agent.Store.Interface
       Simplex.Messaging.Agent.Store.Migrations
       Simplex.Messaging.Agent.Store.Migrations.App
+      Simplex.Messaging.Agent.Store.Postgres.Options
       Simplex.Messaging.Agent.Store.Shared
       Simplex.Messaging.Agent.TRcvQueues
       Simplex.Messaging.Client
@@ -124,6 +130,7 @@ library
       Simplex.Messaging.Parsers
       Simplex.Messaging.Protocol
       Simplex.Messaging.Server.Expiration
+      Simplex.Messaging.Server.QueueStore.Postgres.Config
       Simplex.Messaging.Server.QueueStore.QueueInfo
       Simplex.Messaging.ServiceScheme
       Simplex.Messaging.Session
@@ -148,16 +155,9 @@ library
       Simplex.RemoteControl.Types
   if flag(client_postgres)
       exposed-modules:
-          Simplex.Messaging.Agent.Store.Postgres
-          Simplex.Messaging.Agent.Store.Postgres.Common
-          Simplex.Messaging.Agent.Store.Postgres.DB
-          Simplex.Messaging.Agent.Store.Postgres.Migrations
           Simplex.Messaging.Agent.Store.Postgres.Migrations.App
           Simplex.Messaging.Agent.Store.Postgres.Migrations.M20241210_initial
           Simplex.Messaging.Agent.Store.Postgres.Migrations.M20250203_msg_bodies
-      if !flag(client_library)
-          exposed-modules:
-              Simplex.Messaging.Agent.Store.Postgres.Util
   else
       exposed-modules:
           Simplex.Messaging.Agent.Store.SQLite
@@ -228,18 +228,34 @@ library
           Simplex.Messaging.Server.Env.STM
           Simplex.Messaging.Server.Information
           Simplex.Messaging.Server.Main
+          Simplex.Messaging.Server.Main.Init
           Simplex.Messaging.Server.MsgStore
           Simplex.Messaging.Server.MsgStore.Journal
+          Simplex.Messaging.Server.MsgStore.Journal.SharedLock
           Simplex.Messaging.Server.MsgStore.STM
           Simplex.Messaging.Server.MsgStore.Types
           Simplex.Messaging.Server.NtfStore
           Simplex.Messaging.Server.Prometheus
           Simplex.Messaging.Server.QueueStore
           Simplex.Messaging.Server.QueueStore.STM
+          Simplex.Messaging.Server.QueueStore.Types
           Simplex.Messaging.Server.Stats
           Simplex.Messaging.Server.StoreLog
+          Simplex.Messaging.Server.StoreLog.ReadWrite
           Simplex.Messaging.Server.StoreLog.Types
           Simplex.Messaging.Transport.WebSockets
+      if flag(client_postgres) || flag(server_postgres)
+          exposed-modules:
+              Simplex.Messaging.Agent.Store.Postgres
+              Simplex.Messaging.Agent.Store.Postgres.Common
+              Simplex.Messaging.Agent.Store.Postgres.DB
+              Simplex.Messaging.Agent.Store.Postgres.Migrations
+              Simplex.Messaging.Agent.Store.Postgres.Util
+
+      if flag(server_postgres)
+          exposed-modules:
+              Simplex.Messaging.Server.QueueStore.Postgres
+              Simplex.Messaging.Server.QueueStore.Postgres.Migrations
   other-modules:
       Paths_simplexmq
   hs-source-dirs:
@@ -308,16 +324,19 @@ library
       , process ==1.6.*
       , temporary ==1.3.*
       , websockets ==0.12.*
-  if flag(client_postgres)
+  if flag(client_postgres) || flag(server_postgres)
     build-depends:
         postgresql-libpq >=0.10.0.0
       , postgresql-simple ==0.7.*
       , raw-strings-qq ==1.1.*
+  if flag(client_postgres)
     cpp-options: -DdbPostgres
   else
     build-depends:
         direct-sqlcipher ==2.3.*
       , sqlcipher-simple ==0.4.*
+  if flag(server_postgres)
+    cpp-options: -DdbServerPostgres
   if impl(ghc >= 9.6.2)
     build-depends:
         bytestring ==0.11.*
@@ -435,7 +454,6 @@ test-suite simplexmq-test
       CoreTests.UtilTests
       CoreTests.VersionRangeTests
       FileDescriptionTests
-      Fixtures
       NtfClient
       NtfServerTests
       RemoteControl
@@ -451,7 +469,10 @@ test-suite simplexmq-test
       Static
       Static.Embedded
       Paths_simplexmq
-  if !flag(client_postgres)
+  if flag(client_postgres)
+      other-modules:
+          Fixtures
+  else
       other-modules:
           AgentTests.SchemaDump
           AgentTests.SQLiteTests
@@ -473,7 +494,6 @@ test-suite simplexmq-test
     , crypton-x509
     , crypton-x509-store
     , crypton-x509-validation
-    , deepseq ==1.4.*
     , directory
     , file-embed
     , filepath
@@ -487,10 +507,8 @@ test-suite simplexmq-test
     , ini
     , iso8601-time
     , main-tester ==0.2.*
-    , memory
     , mtl
     , network
-    , process
     , QuickCheck ==2.14.*
     , random
     , silently ==1.2.*
@@ -511,11 +529,15 @@ test-suite simplexmq-test
     , yaml
   default-language: Haskell2010
   if flag(client_postgres)
-    build-depends:
-        postgresql-libpq >=0.10.0.0
-      , postgresql-simple ==0.7.*
-      , raw-strings-qq ==1.1.*
     cpp-options: -DdbPostgres
   else
     build-depends:
-        sqlcipher-simple
+        deepseq ==1.4.*
+      , memory
+      , process
+      , sqlcipher-simple
+  if flag(client_postgres) || flag(server_postgres)
+    build-depends:
+        postgresql-simple ==0.7.*
+  if flag(server_postgres)
+    cpp-options: -DdbServerPostgres
diff --git a/src/Simplex/FileTransfer/Types.hs b/src/Simplex/FileTransfer/Types.hs
index d80ff7c77..953080480 100644
--- a/src/Simplex/FileTransfer/Types.hs
+++ b/src/Simplex/FileTransfer/Types.hs
@@ -22,7 +22,7 @@ import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Parsers
 import Simplex.Messaging.Protocol (XFTPServer)
 import System.FilePath ((</>))
-import Simplex.Messaging.Agent.Store.DB (FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (FromField (..), ToField (..), fromTextField_)
 
 type RcvFileId = ByteString -- Agent entity ID
 
diff --git a/src/Simplex/Messaging/Agent/Lock.hs b/src/Simplex/Messaging/Agent/Lock.hs
index 3c087499c..43b2358fd 100644
--- a/src/Simplex/Messaging/Agent/Lock.hs
+++ b/src/Simplex/Messaging/Agent/Lock.hs
@@ -6,6 +6,7 @@ module Simplex.Messaging.Agent.Lock
     withLock',
     withGetLock,
     withGetLocks,
+    getPutLock,
   )
 where
 
diff --git a/src/Simplex/Messaging/Agent/Protocol.hs b/src/Simplex/Messaging/Agent/Protocol.hs
index 365ef0766..4c6c75d8c 100644
--- a/src/Simplex/Messaging/Agent/Protocol.hs
+++ b/src/Simplex/Messaging/Agent/Protocol.hs
@@ -168,7 +168,7 @@ import Data.Time.Clock.System (SystemTime)
 import Data.Type.Equality
 import Data.Typeable ()
 import Data.Word (Word16, Word32)
-import Simplex.Messaging.Agent.Store.DB (Binary (..), FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (Binary (..), FromField (..), ToField (..), blobFieldDecoder, fromTextField_)
 import Simplex.FileTransfer.Description
 import Simplex.FileTransfer.Protocol (FileParty (..))
 import Simplex.FileTransfer.Transport (XFTPErrorType)
@@ -1016,7 +1016,7 @@ instance Encoding AMessage where
 
 instance ToField AMessage where toField = toField . Binary . smpEncode
 
-instance FromField AMessage where fromField = blobFieldParser smpP
+instance FromField AMessage where fromField = blobFieldDecoder smpDecode
 
 instance Encoding AMessageReceipt where
   smpEncode AMessageReceipt {agentMsgId, msgHash, rcptInfo} =
diff --git a/src/Simplex/Messaging/Agent/Stats.hs b/src/Simplex/Messaging/Agent/Stats.hs
index 020c6a89c..cb78d0c02 100644
--- a/src/Simplex/Messaging/Agent/Stats.hs
+++ b/src/Simplex/Messaging/Agent/Stats.hs
@@ -11,8 +11,8 @@ import Data.Int (Int64)
 import Data.Map.Strict (Map)
 import qualified Data.Map.Strict as M
 import Simplex.Messaging.Agent.Protocol (UserId)
-import Simplex.Messaging.Agent.Store.DB (FromField (..), ToField (..))
-import Simplex.Messaging.Parsers (defaultJSON, fromTextField_)
+import Simplex.Messaging.Agent.Store.DB (FromField (..), ToField (..), fromTextField_)
+import Simplex.Messaging.Parsers (defaultJSON)
 import Simplex.Messaging.Protocol (NtfServer, SMPServer, XFTPServer)
 import Simplex.Messaging.Util (decodeJSON, encodeJSON)
 import UnliftIO.STM
diff --git a/src/Simplex/Messaging/Agent/Store.hs b/src/Simplex/Messaging/Agent/Store.hs
index 5449ce848..14e1f1fc8 100644
--- a/src/Simplex/Messaging/Agent/Store.hs
+++ b/src/Simplex/Messaging/Agent/Store.hs
@@ -30,7 +30,7 @@ import Data.Type.Equality
 import Simplex.Messaging.Agent.Protocol
 import Simplex.Messaging.Agent.RetryInterval (RI2State)
 import Simplex.Messaging.Agent.Store.Common
-import Simplex.Messaging.Agent.Store.Interface (DBOpts, createDBStore)
+import Simplex.Messaging.Agent.Store.Interface (createDBStore)
 import Simplex.Messaging.Agent.Store.Migrations.App (appMigrations)
 import Simplex.Messaging.Agent.Store.Shared (MigrationConfirmation (..), MigrationError (..))
 import qualified Simplex.Messaging.Crypto as C
diff --git a/src/Simplex/Messaging/Agent/Store/AgentStore.hs b/src/Simplex/Messaging/Agent/Store/AgentStore.hs
index 33beab129..a8c1e1fb0 100644
--- a/src/Simplex/Messaging/Agent/Store/AgentStore.hs
+++ b/src/Simplex/Messaging/Agent/Store/AgentStore.hs
@@ -237,7 +237,7 @@ import Control.Monad
 import Control.Monad.IO.Class
 import Control.Monad.Trans.Except
 import Crypto.Random (ChaChaDRG)
-import Data.Bifunctor (first, second)
+import Data.Bifunctor (first)
 import Data.ByteString (ByteString)
 import qualified Data.ByteString.Base64.URL as U
 import qualified Data.ByteString.Char8 as B
@@ -247,7 +247,7 @@ import Data.List (foldl', sortBy)
 import Data.List.NonEmpty (NonEmpty (..))
 import qualified Data.List.NonEmpty as L
 import qualified Data.Map.Strict as M
-import Data.Maybe (catMaybes, fromMaybe, isJust, isNothing, listToMaybe)
+import Data.Maybe (catMaybes, fromMaybe, isJust, isNothing)
 import Data.Ord (Down (..))
 import Data.Text.Encoding (decodeLatin1, encodeUtf8)
 import Data.Time.Clock (NominalDiffTime, UTCTime, addUTCTime, getCurrentTime)
@@ -263,7 +263,7 @@ import Simplex.Messaging.Agent.Stats
 import Simplex.Messaging.Agent.Store
 import Simplex.Messaging.Agent.Store.Common
 import qualified Simplex.Messaging.Agent.Store.DB as DB
-import Simplex.Messaging.Agent.Store.DB (Binary (..), BoolInt (..), FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (Binary (..), BoolInt (..), FromField (..), ToField (..), blobFieldDecoder, fromTextField_)
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Crypto.File (CryptoFile (..), CryptoFileArgs (..))
 import Simplex.Messaging.Crypto.Ratchet (PQEncryption (..), PQSupport (..), RatchetX448, SkippedMsgDiff (..), SkippedMsgKeys)
@@ -272,11 +272,11 @@ import Simplex.Messaging.Encoding
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Notifications.Protocol (DeviceToken (..), NtfSubscriptionId, NtfTknStatus (..), NtfTokenId, SMPQueueNtf (..))
 import Simplex.Messaging.Notifications.Types
-import Simplex.Messaging.Parsers (blobFieldParser, fromTextField_)
+import Simplex.Messaging.Parsers (parseAll)
 import Simplex.Messaging.Protocol
 import qualified Simplex.Messaging.Protocol as SMP
 import Simplex.Messaging.Transport.Client (TransportHost)
-import Simplex.Messaging.Util (bshow, catchAllErrors, eitherToMaybe, ifM, tshow, ($>>=), (<$$>))
+import Simplex.Messaging.Util (bshow, catchAllErrors, eitherToMaybe, firstRow, firstRow', ifM, maybeFirstRow, tshow, ($>>=), (<$$>))
 import Simplex.Messaging.Version.Internal
 import qualified UnliftIO.Exception as E
 import UnliftIO.STM
@@ -1743,23 +1743,23 @@ deriving newtype instance FromField InternalId
 
 instance ToField AgentMessageType where toField = toField . Binary . smpEncode
 
-instance FromField AgentMessageType where fromField = blobFieldParser smpP
+instance FromField AgentMessageType where fromField = blobFieldDecoder smpDecode
 
 instance ToField MsgIntegrity where toField = toField . Binary . strEncode
 
-instance FromField MsgIntegrity where fromField = blobFieldParser strP
+instance FromField MsgIntegrity where fromField = blobFieldDecoder strDecode
 
 instance ToField SMPQueueUri where toField = toField . Binary . strEncode
 
-instance FromField SMPQueueUri where fromField = blobFieldParser strP
+instance FromField SMPQueueUri where fromField = blobFieldDecoder strDecode
 
 instance ToField AConnectionRequestUri where toField = toField . Binary . strEncode
 
-instance FromField AConnectionRequestUri where fromField = blobFieldParser strP
+instance FromField AConnectionRequestUri where fromField = blobFieldDecoder strDecode
 
 instance ConnectionModeI c => ToField (ConnectionRequestUri c) where toField = toField . Binary . strEncode
 
-instance (E.Typeable c, ConnectionModeI c) => FromField (ConnectionRequestUri c) where fromField = blobFieldParser strP
+instance (E.Typeable c, ConnectionModeI c) => FromField (ConnectionRequestUri c) where fromField = blobFieldDecoder strDecode
 
 instance ToField ConnectionMode where toField = toField . decodeLatin1 . strEncode
 
@@ -1775,7 +1775,7 @@ instance FromField MsgFlags where fromField = fromTextField_ $ eitherToMaybe . s
 
 instance ToField [SMPQueueInfo] where toField = toField . Binary . smpEncodeList
 
-instance FromField [SMPQueueInfo] where fromField = blobFieldParser smpListP
+instance FromField [SMPQueueInfo] where fromField = blobFieldDecoder $ parseAll smpListP
 
 instance ToField (NonEmpty TransportHost) where toField = toField . decodeLatin1 . strEncode
 
@@ -1783,11 +1783,11 @@ instance FromField (NonEmpty TransportHost) where fromField = fromTextField_ $ e
 
 instance ToField AgentCommand where toField = toField . Binary . strEncode
 
-instance FromField AgentCommand where fromField = blobFieldParser strP
+instance FromField AgentCommand where fromField = blobFieldDecoder strDecode
 
 instance ToField AgentCommandTag where toField = toField . Binary . strEncode
 
-instance FromField AgentCommandTag where fromField = blobFieldParser strP
+instance FromField AgentCommandTag where fromField = blobFieldDecoder strDecode
 
 instance ToField MsgReceiptStatus where toField = toField . decodeLatin1 . strEncode
 
@@ -1805,23 +1805,10 @@ deriving newtype instance ToField ChunkReplicaId
 
 deriving newtype instance FromField ChunkReplicaId
 
-listToEither :: e -> [a] -> Either e a
-listToEither _ (x : _) = Right x
-listToEither e _ = Left e
-
-firstRow :: (a -> b) -> e -> IO [a] -> IO (Either e b)
-firstRow f e a = second f . listToEither e <$> a
-
-maybeFirstRow :: Functor f => (a -> b) -> f [a] -> f (Maybe b)
-maybeFirstRow f q = fmap f . listToMaybe <$> q
-
 fromOnlyBI :: Only BoolInt -> Bool
 fromOnlyBI (Only (BI b)) = b
 {-# INLINE fromOnlyBI #-}
 
-firstRow' :: (a -> Either e b) -> e -> IO [a] -> IO (Either e b)
-firstRow' f e a = (f <=< listToEither e) <$> a
-
 #if !defined(dbPostgres)
 {- ORMOLU_DISABLE -}
 -- SQLite.Simple only has these up to 10 fields, which is insufficient for some of our queries
diff --git a/src/Simplex/Messaging/Agent/Store/DB.hs b/src/Simplex/Messaging/Agent/Store/DB.hs
index ade1f7e6d..2e9bd30ee 100644
--- a/src/Simplex/Messaging/Agent/Store/DB.hs
+++ b/src/Simplex/Messaging/Agent/Store/DB.hs
@@ -16,4 +16,3 @@ import Simplex.Messaging.Agent.Store.Postgres.DB
   where
 import Simplex.Messaging.Agent.Store.SQLite.DB
 #endif
-
diff --git a/src/Simplex/Messaging/Agent/Store/Postgres.hs b/src/Simplex/Messaging/Agent/Store/Postgres.hs
index ec4527af3..50494e781 100644
--- a/src/Simplex/Messaging/Agent/Store/Postgres.hs
+++ b/src/Simplex/Messaging/Agent/Store/Postgres.hs
@@ -7,6 +7,7 @@
 module Simplex.Messaging.Agent.Store.Postgres
   ( DBOpts (..),
     Migrations.getCurrentMigrations,
+    checkSchemaExists,
     createDBStore,
     closeDBStore,
     reopenDBStore,
@@ -14,13 +15,15 @@ module Simplex.Messaging.Agent.Store.Postgres
   )
 where
 
-import Control.Exception (throwIO)
-import Control.Monad (unless, void)
+import Control.Concurrent.STM
+import Control.Exception (finally, onException, throwIO, uninterruptibleMask_)
+import Control.Logger.Simple (logError)
+import Control.Monad
 import Data.ByteString (ByteString)
 import Data.Functor (($>))
-import Data.String (fromString)
 import Data.Text (Text)
 import Database.PostgreSQL.Simple (Only (..))
+import Database.PostgreSQL.Simple.Types (Query (..))
 import qualified Database.PostgreSQL.Simple as PSQL
 import Database.PostgreSQL.Simple.SqlQQ (sql)
 import Simplex.Messaging.Agent.Store.Migrations (DBMigrate (..), sharedMigrateSchema)
@@ -28,23 +31,16 @@ import qualified Simplex.Messaging.Agent.Store.Postgres.Migrations as Migrations
 import Simplex.Messaging.Agent.Store.Postgres.Common
 import qualified Simplex.Messaging.Agent.Store.Postgres.DB as DB
 import Simplex.Messaging.Agent.Store.Shared (Migration (..), MigrationConfirmation (..), MigrationError (..))
-import Simplex.Messaging.Util (ifM)
-import UnliftIO.Exception (bracketOnError, onException)
+import Simplex.Messaging.Util (ifM, safeDecodeUtf8)
+import System.Exit (exitFailure)
 import UnliftIO.MVar
-import UnliftIO.STM
-
-data DBOpts = DBOpts
-  { connstr :: ByteString,
-    schema :: String
-  }
 
 -- | Create a new Postgres DBStore with the given connection string, schema name and migrations.
 -- If passed schema does not exist in connectInfo database, it will be created.
 -- Applies necessary migrations to schema.
--- TODO [postgres] authentication / user password, db encryption (?)
 createDBStore :: DBOpts -> [Migration] -> MigrationConfirmation -> IO (Either MigrationError DBStore)
-createDBStore DBOpts {connstr, schema} migrations confirmMigrations = do
-  st <- connectPostgresStore connstr schema
+createDBStore opts migrations confirmMigrations = do
+  st <- connectPostgresStore opts
   r <- migrateSchema st `onException` closeDBStore st
   case r of
     Right () -> pure $ Right st
@@ -56,60 +52,77 @@ createDBStore DBOpts {connstr, schema} migrations confirmMigrations = do
           dbm = DBMigrate {initialize, getCurrent, run = Migrations.run st, backup = pure ()}
        in sharedMigrateSchema dbm (dbNew st) migrations confirmMigrations
 
-connectPostgresStore :: ByteString -> String -> IO DBStore
-connectPostgresStore dbConnstr dbSchema = do
-  (dbConn, dbNew) <- connectDB dbConnstr dbSchema -- TODO [postgres] analogue for dbBusyLoop?
-  dbConnection <- newMVar dbConn
-  dbClosed <- newTVarIO False
-  pure DBStore {dbConnstr, dbSchema, dbConnection, dbNew, dbClosed}
+connectPostgresStore :: DBOpts -> IO DBStore
+connectPostgresStore DBOpts {connstr, schema, poolSize, createSchema} = do
+  dbSem <- newMVar ()
+  dbPool <- newTBQueueIO poolSize
+  dbClosed <- newTVarIO True
+  let st = DBStore {dbConnstr = connstr, dbSchema = schema, dbPoolSize = fromIntegral poolSize, dbPool, dbSem, dbNew = False, dbClosed}
+  dbNew <- connectPool st createSchema
+  pure st {dbNew}
 
-connectDB :: ByteString -> String -> IO (DB.Connection, Bool)
-connectDB connstr schema = do
+-- uninterruptibleMask_ here and below is used here so that it is not interrupted half-way,
+-- it relies on the assumption that when dbClosed = True, the queue is empty,
+-- and when it is False, the queue is full (or will have connections returned to it by the threads that use them).
+connectPool :: DBStore -> Bool -> IO Bool
+connectPool DBStore {dbConnstr, dbSchema, dbPoolSize, dbPool, dbClosed} createSchema = uninterruptibleMask_ $ do
+  (conn, dbNew) <- connectDB dbConnstr dbSchema createSchema -- TODO [postgres] analogue for dbBusyLoop?
+  conns <- replicateM (dbPoolSize - 1) $ fst <$> connectDB dbConnstr dbSchema False
+  mapM_ (atomically . writeTBQueue dbPool) (conn : conns)
+  atomically $ writeTVar dbClosed False
+  pure dbNew
+
+connectDB :: ByteString -> ByteString -> Bool -> IO (DB.Connection, Bool)
+connectDB connstr schema createSchema = do
   db <- PSQL.connectPostgreSQL connstr
-  schemaExists <- prepare db `onException` PSQL.close db
-  let dbNew = not schemaExists
+  dbNew <- prepare db `onException` PSQL.close db
   pure (db, dbNew)
   where
     prepare db = do
       void $ PSQL.execute_ db "SET client_min_messages TO WARNING"
-      [Only schemaExists] <-
-        PSQL.query
-          db
-          [sql|
-            SELECT EXISTS (
-              SELECT 1 FROM pg_catalog.pg_namespace
-              WHERE nspname = ?
-            )
-          |]
-          (Only schema)
-      unless schemaExists $ void $ PSQL.execute_ db (fromString $ "CREATE SCHEMA " <> schema)
-      void $ PSQL.execute_ db (fromString $ "SET search_path TO " <> schema)
-      pure schemaExists
+      dbNew <- not <$> doesSchemaExist db schema
+      when dbNew $
+        if createSchema
+          then void $ PSQL.execute_ db $ Query $ "CREATE SCHEMA " <> schema
+          else do
+            logError $ "connectPostgresStore, schema " <> safeDecodeUtf8 schema <> " does not exist, exiting."
+            PSQL.close db
+            exitFailure
+      void $ PSQL.execute_ db $ Query $ "SET search_path TO " <> schema
+      pure dbNew
+
+checkSchemaExists :: ByteString -> ByteString -> IO Bool
+checkSchemaExists connstr schema = do
+  db <- PSQL.connectPostgreSQL connstr
+  doesSchemaExist db schema `finally` DB.close db
+
+doesSchemaExist :: DB.Connection -> ByteString -> IO Bool
+doesSchemaExist db schema = do
+  [Only schemaExists] <-
+    PSQL.query
+      db
+      [sql|
+        SELECT EXISTS (
+          SELECT 1 FROM pg_catalog.pg_namespace
+          WHERE nspname = ?
+        )
+      |]
+      (Only schema)
+  pure schemaExists
 
--- can share with SQLite
 closeDBStore :: DBStore -> IO ()
-closeDBStore st@DBStore {dbClosed} =
-  ifM (readTVarIO dbClosed) (putStrLn "closeDBStore: already closed") $
-    withConnection st $ \conn -> do
-      DB.close conn
-      atomically $ writeTVar dbClosed True
-
-openPostgresStore_ :: DBStore -> IO ()
-openPostgresStore_ DBStore {dbConnstr, dbSchema, dbConnection, dbClosed} =
-  bracketOnError
-    (takeMVar dbConnection)
-    (tryPutMVar dbConnection)
-    $ \_dbConn -> do
-      (dbConn, _dbNew) <- connectDB dbConnstr dbSchema
-      atomically $ writeTVar dbClosed False
-      putMVar dbConnection dbConn
+closeDBStore DBStore {dbPool, dbPoolSize, dbClosed} =
+  ifM (readTVarIO dbClosed) (putStrLn "closeDBStore: already closed") $ uninterruptibleMask_ $ do
+    replicateM_ dbPoolSize $ atomically (readTBQueue dbPool) >>= DB.close
+    atomically $ writeTVar dbClosed True
 
 reopenDBStore :: DBStore -> IO ()
-reopenDBStore st@DBStore {dbClosed} =
-  ifM (readTVarIO dbClosed) open (putStrLn "reopenDBStore: already opened")
-  where
-    open = openPostgresStore_ st
+reopenDBStore st =
+  ifM
+    (readTVarIO $ dbClosed st)
+    (void $ connectPool st False)
+    (putStrLn "reopenDBStore: already opened")
 
--- TODO [postgres] not necessary for postgres (used for ExecAgentStoreSQL, ExecChatStoreSQL)
+-- not used with postgres client (used for ExecAgentStoreSQL, ExecChatStoreSQL)
 execSQL :: PSQL.Connection -> Text -> IO [Text]
 execSQL _db _query = throwIO (userError "not implemented")
diff --git a/src/Simplex/Messaging/Agent/Store/Postgres/Common.hs b/src/Simplex/Messaging/Agent/Store/Postgres/Common.hs
index f130a1b5f..a71376a20 100644
--- a/src/Simplex/Messaging/Agent/Store/Postgres/Common.hs
+++ b/src/Simplex/Messaging/Agent/Store/Postgres/Common.hs
@@ -1,7 +1,12 @@
+{-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE TupleSections #-}
 
 module Simplex.Messaging.Agent.Store.Postgres.Common
   ( DBStore (..),
+    DBOpts (..),
     withConnection,
     withConnection',
     withTransaction,
@@ -10,33 +15,43 @@ module Simplex.Messaging.Agent.Store.Postgres.Common
   )
 where
 
+import Control.Concurrent.MVar
+import Control.Concurrent.STM
+import Control.Exception (bracket)
 import Data.ByteString (ByteString)
 import qualified Database.PostgreSQL.Simple as PSQL
-import UnliftIO.MVar
-import UnliftIO.STM
+import Simplex.Messaging.Agent.Store.Postgres.Options
 
 -- TODO [postgres] use log_min_duration_statement instead of custom slow queries (SQLite's Connection type)
 data DBStore = DBStore
   { dbConnstr :: ByteString,
-    dbSchema :: String,
-    dbConnection :: MVar PSQL.Connection,
+    dbSchema :: ByteString,
+    dbPoolSize :: Int,
+    dbPool :: TBQueue PSQL.Connection,
+    -- MVar is needed for fair pool distribution, without STM retry contention.
+    -- Only one thread can be blocked on STM read.
+    dbSem :: MVar (),
     dbClosed :: TVar Bool,
     dbNew :: Bool
   }
 
--- TODO [postgres] connection pool
 withConnectionPriority :: DBStore -> Bool -> (PSQL.Connection -> IO a) -> IO a
-withConnectionPriority DBStore {dbConnection} _priority action =
-  withMVar dbConnection action
+withConnectionPriority DBStore {dbPool, dbSem} _priority =
+  bracket
+    (withMVar dbSem $ \_ -> atomically $ readTBQueue dbPool)
+    (atomically . writeTBQueue dbPool)
 
 withConnection :: DBStore -> (PSQL.Connection -> IO a) -> IO a
 withConnection st = withConnectionPriority st False
+{-# INLINE withConnection #-}
 
 withConnection' :: DBStore -> (PSQL.Connection -> IO a) -> IO a
 withConnection' = withConnection
+{-# INLINE withConnection' #-}
 
 withTransaction' :: DBStore -> (PSQL.Connection -> IO a) -> IO a
 withTransaction' = withTransaction
+{-# INLINE withTransaction' #-}
 
 withTransaction :: DBStore -> (PSQL.Connection -> IO a) -> IO a
 withTransaction st = withTransactionPriority st False
diff --git a/src/Simplex/Messaging/Agent/Store/Postgres/DB.hs b/src/Simplex/Messaging/Agent/Store/Postgres/DB.hs
index 38debb070..fc2c7cef0 100644
--- a/src/Simplex/Messaging/Agent/Store/Postgres/DB.hs
+++ b/src/Simplex/Messaging/Agent/Store/Postgres/DB.hs
@@ -13,16 +13,23 @@ module Simplex.Messaging.Agent.Store.Postgres.DB
     executeMany,
     PSQL.query,
     PSQL.query_,
+    blobFieldDecoder,
+    fromTextField_,
   )
 where
 
 import Control.Monad (void)
+import Data.ByteString.Char8 (ByteString)
 import Data.Int (Int64)
+import Data.Text (Text)
+import Data.Text.Encoding (decodeUtf8)
+import Data.Typeable (Typeable)
 import Data.Word (Word16, Word32)
 import Database.PostgreSQL.Simple (ResultError (..))
 import qualified Database.PostgreSQL.Simple as PSQL
-import Database.PostgreSQL.Simple.FromField (FromField (..), returnError)
+import Database.PostgreSQL.Simple.FromField (Field (..), FieldParser, FromField (..), returnError)
 import Database.PostgreSQL.Simple.ToField (ToField (..))
+import Database.PostgreSQL.Simple.TypeInfo.Static (textOid, varcharOid)
 
 newtype BoolInt = BI {unBI :: Bool}
 
@@ -63,3 +70,20 @@ instance FromField Word16 where
     if i >= 0 && i <= fromIntegral (maxBound :: Word16)
       then pure (fromIntegral i :: Word16)
       else returnError ConversionFailed field "Negative value can't be converted to Word16"
+
+blobFieldDecoder :: Typeable k => (ByteString -> Either String k) -> FieldParser k
+blobFieldDecoder dec f val = do
+  x <- fromField f val
+  case dec x of
+    Right k -> pure k
+    Left e -> returnError ConversionFailed f ("couldn't parse field: " ++ e)
+
+fromTextField_ :: Typeable a => (Text -> Maybe a) -> FieldParser a
+fromTextField_ fromText f val =
+  if typeOid f `elem` [textOid, varcharOid]
+    then case val of
+      Just t -> case fromText $ decodeUtf8 t of
+        Just x -> pure x
+        _ -> returnError ConversionFailed f "invalid text value"
+      Nothing -> returnError UnexpectedNull f "NULL value found for non-NULL field"
+    else returnError Incompatible f "expecting TEXT or VARCHAR column type"
diff --git a/src/Simplex/Messaging/Agent/Store/Postgres/Migrations.hs b/src/Simplex/Messaging/Agent/Store/Postgres/Migrations.hs
index daa0c73f1..d6f552937 100644
--- a/src/Simplex/Messaging/Agent/Store/Postgres/Migrations.hs
+++ b/src/Simplex/Messaging/Agent/Store/Postgres/Migrations.hs
@@ -11,7 +11,9 @@ module Simplex.Messaging.Agent.Store.Postgres.Migrations
   )
 where
 
+import Control.Exception (throwIO)
 import Control.Monad (void)
+import qualified Data.ByteString.Char8 as B
 import qualified Data.Text as T
 import qualified Data.Text.Encoding as TE
 import Data.Time.Clock (getCurrentTime)
@@ -22,6 +24,7 @@ import Database.PostgreSQL.Simple.Internal (Connection (..))
 import Database.PostgreSQL.Simple.SqlQQ (sql)
 import Simplex.Messaging.Agent.Store.Postgres.Common
 import Simplex.Messaging.Agent.Store.Shared
+import Simplex.Messaging.Util (($>>=))
 import UnliftIO.MVar
 
 initialize :: DBStore -> IO ()
@@ -55,7 +58,9 @@ run st = \case
       void $ PSQL.execute db "DELETE FROM migrations WHERE name = ?" (Only downName)
     execSQL db query =
       withMVar (connectionHandle db) $ \pqConn ->
-        void $ LibPQ.exec pqConn (TE.encodeUtf8 query)
+        LibPQ.exec pqConn (TE.encodeUtf8 query) $>>= LibPQ.resultErrorMessage >>= \case
+          Just e | not (B.null e) -> throwIO $ userError $ B.unpack e
+          _ -> pure ()
 
 getCurrentMigrations :: PSQL.Connection -> IO [Migration]
 getCurrentMigrations db = map toMigration <$> PSQL.query_ db "SELECT name, down FROM migrations ORDER BY name ASC;"
diff --git a/src/Simplex/Messaging/Agent/Store/Postgres/Options.hs b/src/Simplex/Messaging/Agent/Store/Postgres/Options.hs
new file mode 100644
index 000000000..62ab89265
--- /dev/null
+++ b/src/Simplex/Messaging/Agent/Store/Postgres/Options.hs
@@ -0,0 +1,12 @@
+module Simplex.Messaging.Agent.Store.Postgres.Options where
+
+import Data.ByteString (ByteString)
+import Numeric.Natural
+
+data DBOpts = DBOpts
+  { connstr :: ByteString,
+    schema :: ByteString,
+    poolSize :: Natural,
+    createSchema :: Bool
+  }
+  deriving (Show)
diff --git a/src/Simplex/Messaging/Agent/Store/SQLite.hs b/src/Simplex/Messaging/Agent/Store/SQLite.hs
index 72792ba65..c724c031b 100644
--- a/src/Simplex/Messaging/Agent/Store/SQLite.hs
+++ b/src/Simplex/Messaging/Agent/Store/SQLite.hs
@@ -67,14 +67,6 @@ import UnliftIO.STM
 
 -- * SQLite Store implementation
 
-data DBOpts = DBOpts
-  { dbFilePath :: FilePath,
-    dbKey :: ScrubbedBytes,
-    keepKey :: Bool,
-    vacuum :: Bool,
-    track :: DB.TrackQueries
-  }
-
 createDBStore :: DBOpts -> [Migration] -> MigrationConfirmation -> IO (Either MigrationError DBStore)
 createDBStore DBOpts {dbFilePath, dbKey, keepKey, track, vacuum} migrations confirmMigrations = do
   let dbDir = takeDirectory dbFilePath
diff --git a/src/Simplex/Messaging/Agent/Store/SQLite/Common.hs b/src/Simplex/Messaging/Agent/Store/SQLite/Common.hs
index 3b0c4d6c8..3800dc362 100644
--- a/src/Simplex/Messaging/Agent/Store/SQLite/Common.hs
+++ b/src/Simplex/Messaging/Agent/Store/SQLite/Common.hs
@@ -5,6 +5,7 @@
 
 module Simplex.Messaging.Agent.Store.SQLite.Common
   ( DBStore (..),
+    DBOpts (..),
     withConnection,
     withConnection',
     withTransaction,
@@ -39,6 +40,14 @@ data DBStore = DBStore
     dbNew :: Bool
   }
 
+data DBOpts = DBOpts
+  { dbFilePath :: FilePath,
+    dbKey :: ScrubbedBytes,
+    keepKey :: Bool,
+    vacuum :: Bool,
+    track :: DB.TrackQueries
+  }
+
 withConnectionPriority :: DBStore -> Bool -> (DB.Connection -> IO a) -> IO a
 withConnectionPriority DBStore {dbSem, dbConnection} priority action
   | priority = E.bracket_ signal release $ withMVar dbConnection action
diff --git a/src/Simplex/Messaging/Agent/Store/SQLite/DB.hs b/src/Simplex/Messaging/Agent/Store/SQLite/DB.hs
index 59c282c46..7da6b2ca2 100644
--- a/src/Simplex/Messaging/Agent/Store/SQLite/DB.hs
+++ b/src/Simplex/Messaging/Agent/Store/SQLite/DB.hs
@@ -21,6 +21,8 @@ module Simplex.Messaging.Agent.Store.SQLite.DB
     executeMany,
     query,
     query_,
+    blobFieldDecoder,
+    fromTextField_,
   )
 where
 
@@ -33,10 +35,14 @@ import Data.Int (Int64)
 import Data.Map.Strict (Map)
 import qualified Data.Map.Strict as M
 import Data.Text (Text)
+import qualified Data.Text as T
 import Data.Time (diffUTCTime, getCurrentTime)
-import Database.SQLite.Simple (FromRow, Query, ToRow)
+import Data.Typeable (Typeable)
+import Database.SQLite.Simple (FromRow, ResultError (..), Query, SQLData (..), ToRow)
 import qualified Database.SQLite.Simple as SQL
-import Database.SQLite.Simple.FromField (FromField (..))
+import Database.SQLite.Simple.FromField (FieldParser, FromField (..), returnError)
+import Database.SQLite.Simple.Internal (Field (..))
+import Database.SQLite.Simple.Ok (Ok (Ok))
 import Database.SQLite.Simple.ToField (ToField (..))
 import Simplex.Messaging.Parsers (defaultJSON)
 import Simplex.Messaging.TMap (TMap)
@@ -129,4 +135,20 @@ query_ :: FromRow r => Connection -> Query -> IO [r]
 query_ c sql = timeIt c sql $ SQL.query_ (conn c) sql
 {-# INLINE query_ #-}
 
+blobFieldDecoder :: Typeable k => (ByteString -> Either String k) -> FieldParser k
+blobFieldDecoder dec = \case
+  f@(Field (SQLBlob b) _) ->
+    case dec b of
+      Right k -> Ok k
+      Left e -> returnError ConversionFailed f ("couldn't parse field: " ++ e)
+  f -> returnError ConversionFailed f "expecting SQLBlob column type"
+
+fromTextField_ :: Typeable a => (Text -> Maybe a) -> Field -> Ok a
+fromTextField_ fromText = \case
+  f@(Field (SQLText t) _) ->
+    case fromText t of
+      Just x -> Ok x
+      _ -> returnError ConversionFailed f ("invalid text: " <> T.unpack t)
+  f -> returnError ConversionFailed f "expecting SQLText column type"
+
 $(J.deriveJSON defaultJSON ''SlowQueryStats)
diff --git a/src/Simplex/Messaging/Client.hs b/src/Simplex/Messaging/Client.hs
index b1b5bfa53..df12e5fce 100644
--- a/src/Simplex/Messaging/Client.hs
+++ b/src/Simplex/Messaging/Client.hs
@@ -145,7 +145,7 @@ import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Transport
 import Simplex.Messaging.Transport.Client (SocksAuth (..), SocksProxyWithAuth (..), TransportClientConfig (..), TransportHost (..), defaultSMPPort, defaultTcpConnectTimeout, runTransportClient)
 import Simplex.Messaging.Transport.KeepAlive
-import Simplex.Messaging.Util (bshow, diffToMicroseconds, ifM, liftEitherWith, raceAny_, threadDelay', tshow, whenM)
+import Simplex.Messaging.Util (bshow, diffToMicroseconds, ifM, liftEitherWith, raceAny_, threadDelay', tryWriteTBQueue, tshow, whenM)
 import Simplex.Messaging.Version
 import System.Mem.Weak (Weak, deRefWeak)
 import System.Timeout (timeout)
@@ -1121,7 +1121,7 @@ sendProtocolCommand_ c@ProtocolClient {client_ = PClient {sndQ}, thParams = THan
 
 nonBlockingWriteTBQueue :: TBQueue a -> a -> IO ()
 nonBlockingWriteTBQueue q x = do
-  sent <- atomically $ ifM (isFullTBQueue q) (pure False) (writeTBQueue q x $> True)
+  sent <- atomically $ tryWriteTBQueue q x
   unless sent $ void $ forkIO $ atomically $ writeTBQueue q x
 
 getResponse :: ProtocolClient v err msg -> Maybe Int -> Request err msg -> IO (Response err msg)
diff --git a/src/Simplex/Messaging/Crypto.hs b/src/Simplex/Messaging/Crypto.hs
index 5a22ef203..b4af69450 100644
--- a/src/Simplex/Messaging/Crypto.hs
+++ b/src/Simplex/Messaging/Crypto.hs
@@ -239,10 +239,10 @@ import Data.X509
 import Data.X509.Validation (Fingerprint (..), getFingerprint)
 import GHC.TypeLits (ErrorMessage (..), KnownNat, Nat, TypeError, natVal, type (+))
 import Network.Transport.Internal (decodeWord16, encodeWord16)
-import Simplex.Messaging.Agent.Store.DB (Binary (..), FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (Binary (..), FromField (..), ToField (..), blobFieldDecoder)
 import Simplex.Messaging.Encoding
 import Simplex.Messaging.Encoding.String
-import Simplex.Messaging.Parsers (blobFieldDecoder, parseAll, parseString)
+import Simplex.Messaging.Parsers (parseAll, parseString)
 import Simplex.Messaging.Util ((<$?>))
 
 -- | Cryptographic algorithms.
diff --git a/src/Simplex/Messaging/Crypto/Ratchet.hs b/src/Simplex/Messaging/Crypto/Ratchet.hs
index bd87f70b9..5ac052ad8 100644
--- a/src/Simplex/Messaging/Crypto/Ratchet.hs
+++ b/src/Simplex/Messaging/Crypto/Ratchet.hs
@@ -116,12 +116,12 @@ import Data.Type.Equality
 import Data.Typeable (Typeable)
 import Data.Word (Word16, Word32)
 import Simplex.Messaging.Agent.QueryString
-import Simplex.Messaging.Agent.Store.DB (Binary (..), BoolInt (..), FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (Binary (..), BoolInt (..), FromField (..), ToField (..), blobFieldDecoder)
 import Simplex.Messaging.Crypto
 import Simplex.Messaging.Crypto.SNTRUP761.Bindings
 import Simplex.Messaging.Encoding
 import Simplex.Messaging.Encoding.String
-import Simplex.Messaging.Parsers (blobFieldDecoder, blobFieldParser, defaultJSON, parseE, parseE')
+import Simplex.Messaging.Parsers (defaultJSON, parseE, parseE')
 import Simplex.Messaging.Util (($>>=), (<$?>))
 import Simplex.Messaging.Version
 import Simplex.Messaging.Version.Internal
@@ -1186,4 +1186,4 @@ instance Encoding (MsgEncryptKey a) where
 
 instance AlgorithmI a => ToField (MsgEncryptKey a) where toField = toField . Binary . smpEncode
 
-instance (AlgorithmI a, Typeable a) => FromField (MsgEncryptKey a) where fromField = blobFieldParser smpP
+instance (AlgorithmI a, Typeable a) => FromField (MsgEncryptKey a) where fromField = blobFieldDecoder smpDecode
diff --git a/src/Simplex/Messaging/Notifications/Protocol.hs b/src/Simplex/Messaging/Notifications/Protocol.hs
index 4284a6131..3594c2bc7 100644
--- a/src/Simplex/Messaging/Notifications/Protocol.hs
+++ b/src/Simplex/Messaging/Notifications/Protocol.hs
@@ -28,12 +28,11 @@ import Data.Time.Clock.System
 import Data.Type.Equality
 import Data.Word (Word16)
 import Simplex.Messaging.Agent.Protocol (updateSMPServerHosts)
-import Simplex.Messaging.Agent.Store.DB (FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (FromField (..), ToField (..), fromTextField_)
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Encoding
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Notifications.Transport (NTFVersion, invalidReasonNTFVersion, ntfClientHandshake)
-import Simplex.Messaging.Parsers (fromTextField_)
 import Simplex.Messaging.Protocol hiding (Command (..), CommandTag (..))
 import Simplex.Messaging.Util (eitherToMaybe, (<$?>))
 
diff --git a/src/Simplex/Messaging/Notifications/Types.hs b/src/Simplex/Messaging/Notifications/Types.hs
index 3daf97970..4a335c964 100644
--- a/src/Simplex/Messaging/Notifications/Types.hs
+++ b/src/Simplex/Messaging/Notifications/Types.hs
@@ -10,11 +10,10 @@ import qualified Data.Attoparsec.ByteString.Char8 as A
 import Data.Text.Encoding (decodeLatin1, encodeUtf8)
 import Data.Time (UTCTime)
 import Simplex.Messaging.Agent.Protocol (ConnId, NotificationsMode (..), UserId)
-import Simplex.Messaging.Agent.Store.DB (Binary (..), FromField (..), ToField (..))
+import Simplex.Messaging.Agent.Store.DB (Binary (..), FromField (..), ToField (..), blobFieldDecoder, fromTextField_)
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Encoding
 import Simplex.Messaging.Notifications.Protocol
-import Simplex.Messaging.Parsers (blobFieldDecoder, fromTextField_)
 import Simplex.Messaging.Protocol (NotifierId, NtfServer, SMPServer)
 
 data NtfTknAction
diff --git a/src/Simplex/Messaging/Parsers.hs b/src/Simplex/Messaging/Parsers.hs
index 008acd1d5..4e1a5ee20 100644
--- a/src/Simplex/Messaging/Parsers.hs
+++ b/src/Simplex/Messaging/Parsers.hs
@@ -16,24 +16,11 @@ import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
 import Data.Char (isAlphaNum, toLower)
 import Data.String
-import Data.Text (Text)
 import qualified Data.Text as T
 import Data.Time.Clock (UTCTime)
 import Data.Time.ISO8601 (parseISO8601)
-import Data.Typeable (Typeable)
 import Simplex.Messaging.Util (safeDecodeUtf8, (<$?>))
 import Text.Read (readMaybe)
-#if defined(dbPostgres)
-import Database.PostgreSQL.Simple (ResultError (..))
-import Database.PostgreSQL.Simple.FromField (FromField(..), FieldParser, returnError, Field (..))
-import Database.PostgreSQL.Simple.TypeInfo.Static (textOid, varcharOid)
-import qualified Data.Text.Encoding as TE
-#else
-import Database.SQLite.Simple (ResultError (..), SQLData (..))
-import Database.SQLite.Simple.FromField (FieldParser, returnError)
-import Database.SQLite.Simple.Internal (Field (..))
-import Database.SQLite.Simple.Ok (Ok (Ok))
-#endif
 
 base64P :: Parser ByteString
 base64P = decode <$?> paddedBase64 rawBase64P
@@ -83,47 +70,6 @@ wordEnd c = c == ' ' || c == '\n'
 parseString :: (ByteString -> Either String a) -> (String -> a)
 parseString p = either error id . p . B.pack
 
-blobFieldParser :: Typeable k => Parser k -> FieldParser k
-blobFieldParser = blobFieldDecoder . parseAll
-
-#if defined(dbPostgres)
-blobFieldDecoder :: Typeable k => (ByteString -> Either String k) -> FieldParser k
-blobFieldDecoder dec f val = do
-  x <- fromField f val
-  case dec x of
-    Right k -> pure k
-    Left e -> returnError ConversionFailed f ("couldn't parse field: " ++ e)
-#else
-blobFieldDecoder :: Typeable k => (ByteString -> Either String k) -> FieldParser k
-blobFieldDecoder dec = \case
-  f@(Field (SQLBlob b) _) ->
-    case dec b of
-      Right k -> Ok k
-      Left e -> returnError ConversionFailed f ("couldn't parse field: " ++ e)
-  f -> returnError ConversionFailed f "expecting SQLBlob column type"
-#endif
-
--- TODO [postgres] review
-#if defined(dbPostgres)
-fromTextField_ :: Typeable a => (Text -> Maybe a) -> FieldParser a
-fromTextField_ fromText f val =
-  if typeOid f `elem` [textOid, varcharOid]
-    then case val of
-      Just t -> case fromText (TE.decodeUtf8 t) of
-        Just x -> pure x
-        _ -> returnError ConversionFailed f "invalid text value"
-      Nothing -> returnError UnexpectedNull f "NULL value found for non-NULL field"
-    else returnError Incompatible f "expecting TEXT or VARCHAR column type"
-#else
-fromTextField_ :: Typeable a => (Text -> Maybe a) -> Field -> Ok a
-fromTextField_ fromText = \case
-  f@(Field (SQLText t) _) ->
-    case fromText t of
-      Just x -> Ok x
-      _ -> returnError ConversionFailed f ("invalid text: " <> T.unpack t)
-  f -> returnError ConversionFailed f "expecting SQLText column type"
-#endif
-
 fstToLower :: String -> String
 fstToLower "" = ""
 fstToLower (h : t) = toLower h : t
diff --git a/src/Simplex/Messaging/Server.hs b/src/Simplex/Messaging/Server.hs
index 8452a2eb6..00dc7cba7 100644
--- a/src/Simplex/Messaging/Server.hs
+++ b/src/Simplex/Messaging/Server.hs
@@ -13,6 +13,7 @@
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TupleSections #-}
+{-# LANGUAGE TypeApplications #-}
 
 -- |
 -- Module      : Simplex.Messaging.Server
@@ -96,14 +97,14 @@ import Simplex.Messaging.Server.Control
 import Simplex.Messaging.Server.Env.STM as Env
 import Simplex.Messaging.Server.Expiration
 import Simplex.Messaging.Server.MsgStore
-import Simplex.Messaging.Server.MsgStore.Journal (JournalQueue, closeMsgQueue)
+import Simplex.Messaging.Server.MsgStore.Journal (JournalMsgStore, JournalQueue)
 import Simplex.Messaging.Server.MsgStore.STM
 import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.NtfStore
 import Simplex.Messaging.Server.Prometheus
 import Simplex.Messaging.Server.QueueStore
 import Simplex.Messaging.Server.QueueStore.QueueInfo
-import Simplex.Messaging.Server.QueueStore.STM
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.Server.Stats
 import Simplex.Messaging.Server.StoreLog (foldLogLines)
 import Simplex.Messaging.TMap (TMap)
@@ -234,7 +235,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
 
     saveServer :: Bool -> M ()
     saveServer drainMsgs = do
-      ams@(AMS _ ms) <- asks msgStore
+      ams@(AMS _ _ ms) <- asks msgStore
       liftIO $ saveServerMessages drainMsgs ams >> closeMsgStore ms
       saveServerNtfs
       saveServerStats
@@ -284,17 +285,17 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
               -- This case catches Just Nothing - it cannot happen here.
               -- Nothing is there only before client thread is started.
               _ -> TM.lookup qId ss >>= mapM readTVar -- do not insert client if it is already disconnected, but send END to any other client
-            clientToBeNotified ac@(AClient _ c')
+            clientToBeNotified ac@(AClient _ _ c')
               | clntId == clientId c' = pure Nothing
               | otherwise = (\yes -> if yes then Just ((qId, subscribed), ac) else Nothing) <$> readTVar (connected c')
         endPreviousSubscriptions :: ((QueueId, Subscribed), AClient) -> IO (Maybe s)
-        endPreviousSubscriptions (qEvt@(qId, _), ac@(AClient _ c)) = do
+        endPreviousSubscriptions (qEvt@(qId, _), ac@(AClient _ _ c)) = do
           atomically $ modifyTVar' (pendingEvts s) $ IM.alter (Just . maybe [qEvt] (qEvt <|)) (clientId c)
           atomically $ do
             sub <- TM.lookupDelete qId (clientSubs c)
             removeWhenNoSubs ac $> sub
         -- remove client from server's subscribed cients
-        removeWhenNoSubs (AClient _ c) = whenM (null <$> readTVar (clientSubs c)) $ modifyTVar' (subClnts s) $ IM.delete (clientId c)
+        removeWhenNoSubs (AClient _ _ c) = whenM (null <$> readTVar (clientSubs c)) $ modifyTVar' (subClnts s) $ IM.delete (clientId c)
 
     deliverNtfsThread :: Server -> M ()
     deliverNtfsThread Server {ntfSubClients} = do
@@ -305,7 +306,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
         threadDelay ntfInt
         readTVarIO ntfSubClients >>= mapM_ (deliverNtfs ns stats)
       where
-        deliverNtfs ns stats (AClient _ Client {clientId, ntfSubscriptions, sndQ, connected}) =
+        deliverNtfs ns stats (AClient _ _ Client {clientId, ntfSubscriptions, sndQ, connected}) =
           whenM (currentClient readTVarIO) $ do
             subs <- readTVarIO ntfSubscriptions
             ntfQs <- M.assocs . M.filterWithKey (\nId _ -> M.member nId subs) <$> readTVarIO ns
@@ -351,9 +352,9 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
           ends <- atomically $ swapTVar ref IM.empty
           unless (null ends) $ forM_ (IM.assocs ends) $ \(cId, qEvts) ->
             mapM_ (queueEvts qEvts) . join . IM.lookup cId =<< readTVarIO cls
-        queueEvts qEvts (AClient _ c@Client {connected, sndQ = q}) =
+        queueEvts qEvts (AClient _ _ c@Client {connected, sndQ = q}) =
           whenM (readTVarIO connected) $ do
-            sent <- atomically $ ifM (isFullTBQueue q) (pure False) (writeTBQueue q ts $> True)
+            sent <- atomically $ tryWriteTBQueue q ts
             if sent
               then updateEndStats
               else -- if queue is full it can block
@@ -389,21 +390,27 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
 
     expireMessagesThread :: ExpirationConfig -> M ()
     expireMessagesThread expCfg = do
-      AMS _ ms <- asks msgStore
+      AMS _ _ ms <- asks msgStore
       let interval = checkInterval expCfg * 1000000
       stats <- asks serverStats
       labelMyThread "expireMessagesThread"
-      liftIO $ forever $ do
-        threadDelay' interval
-        old <- expireBeforeEpoch expCfg
-        now <- systemSeconds <$> getSystemTime
-        msgStats@MessageStats {storedMsgsCount = stored, expiredMsgsCount = expired} <-
-          withActiveMsgQueues ms $ expireQueueMsgs now ms old
-        atomicWriteIORef (msgCount stats) stored
-        atomicModifyIORef'_ (msgExpired stats) (+ expired)
-        printMessageStats "STORE: messages" msgStats
+      liftIO $ forever $ expire ms stats interval
       where
-        expireQueueMsgs now ms old q = fmap (fromRight newMessageStats) . runExceptT $ do
+        expire :: forall s. MsgStoreClass s => s -> ServerStats -> Int64 -> IO ()
+        expire ms stats interval = do
+          threadDelay' interval
+          logInfo "Started expiring messages..."
+          n <- compactQueues @(StoreQueue s) $ queueStore ms
+          when (n > 0) $ logInfo $ "Removed " <> tshow n <> " old deleted queues from the database."
+          old <- expireBeforeEpoch expCfg
+          now <- systemSeconds <$> getSystemTime
+          tryAny (withAllMsgQueues False "idleDeleteExpiredMsgs" ms $ expireQueueMsgs now ms old) >>= \case
+            Right msgStats@MessageStats {storedMsgsCount = stored, expiredMsgsCount = expired} -> do
+              atomicWriteIORef (msgCount stats) stored
+              atomicModifyIORef'_ (msgExpired stats) (+ expired)
+              printMessageStats "STORE: messages" msgStats
+            Left e -> logError $ "STORE: withAllMsgQueues, error expiring messages, " <> tshow e
+        expireQueueMsgs now ms old q = do
           (expired_, stored) <- idleDeleteExpiredMsgs now ms q old
           pure MessageStats {storedMsgsCount = stored, expiredMsgsCount = fromMaybe 0 expired_, storedQueues = 1}
 
@@ -434,9 +441,9 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
       liftIO $ threadDelay' $ 1000000 * (initialDelay + if initialDelay < 0 then 86400 else 0)
       ss@ServerStats {fromTime, qCreated, qSecured, qDeletedAll, qDeletedAllB, qDeletedNew, qDeletedSecured, qSub, qSubAllB, qSubAuth, qSubDuplicate, qSubProhibited, qSubEnd, qSubEndB, ntfCreated, ntfDeleted, ntfDeletedB, ntfSub, ntfSubB, ntfSubAuth, ntfSubDuplicate, msgSent, msgSentAuth, msgSentQuota, msgSentLarge, msgRecv, msgRecvGet, msgGet, msgGetNoMsg, msgGetAuth, msgGetDuplicate, msgGetProhibited, msgExpired, activeQueues, msgSentNtf, msgRecvNtf, activeQueuesNtf, qCount, msgCount, ntfCount, pRelays, pRelaysOwn, pMsgFwds, pMsgFwdsOwn, pMsgFwdsRecv}
         <- asks serverStats
-      AMS _ st <- asks msgStore
-      let STMQueueStore {queues, notifiers} = stmQueueStore st
-          interval = 1000000 * logInterval
+      AMS _ _ (st :: s) <- asks msgStore
+      QueueCounts {queueCount, notifierCount} <- liftIO $ queueCounts @(StoreQueue s) $ queueStore st
+      let interval = 1000000 * logInterval
       forever $ do
         withFile statsFilePath AppendMode $ \h -> liftIO $ do
           hSetBuffering h LineBuffering
@@ -489,8 +496,6 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
           pMsgFwdsOwn' <- getResetProxyStatsData pMsgFwdsOwn
           pMsgFwdsRecv' <- atomicSwapIORef pMsgFwdsRecv 0
           qCount' <- readIORef qCount
-          qCount'' <- M.size <$> readTVarIO queues
-          notifierCount' <- M.size <$> readTVarIO notifiers
           msgCount' <- readIORef msgCount
           ntfCount' <- readIORef ntfCount
           hPutStrLn h $
@@ -543,13 +548,13 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                        "0", -- dayCount psSub; psSub is removed to reduce memory usage
                        "0", -- weekCount psSub
                        "0", -- monthCount psSub
-                       show qCount'',
+                       show queueCount,
                        show ntfCreated',
                        show ntfDeleted',
                        show ntfSub',
                        show ntfSubAuth',
                        show ntfSubDuplicate',
-                       show notifierCount',
+                       show notifierCount,
                        show qDeletedAllB',
                        show qSubAllB',
                        show qSubEnd',
@@ -575,7 +580,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
     savePrometheusMetrics saveInterval metricsFile = do
       labelMyThread "savePrometheusMetrics"
       liftIO $ putStrLn $ "Prometheus metrics saved every " <> show saveInterval <> " seconds to " <> metricsFile
-      AMS _ st <- asks msgStore
+      AMS _ _ st <- asks msgStore
       ss <- asks serverStats
       env <- ask
       let interval = 1000000 * saveInterval
@@ -586,14 +591,12 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
         rtm <- getRealTimeMetrics env
         T.writeFile metricsFile $ prometheusMetrics sm rtm ts
 
-    getServerMetrics :: STMStoreClass s => s -> ServerStats -> IO ServerMetrics
+    getServerMetrics :: forall s. MsgStoreClass s => s -> ServerStats -> IO ServerMetrics
     getServerMetrics st ss = do
       d <- getServerStatsData ss
       let ps = periodStatDataCounts $ _activeQueues d
           psNtf = periodStatDataCounts $ _activeQueuesNtf d
-          STMQueueStore {queues, notifiers} = stmQueueStore st
-      queueCount <- M.size <$> readTVarIO queues
-      notifierCount <- M.size <$> readTVarIO notifiers
+      QueueCounts {queueCount, notifierCount} <- queueCounts @(StoreQueue s) $ queueStore st
       pure ServerMetrics {statsData = d, activeQueueCounts = ps, activeNtfCounts = psNtf, queueCount, notifierCount}
 
     getRealTimeMetrics :: Env -> IO RealTimeMetrics
@@ -670,7 +673,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
               CPClients -> withAdminRole $ do
                 active <- unliftIO u (asks clients) >>= readTVarIO
                 hPutStrLn h "clientId,sessionId,connected,createdAt,rcvActiveAt,sndActiveAt,age,subscriptions"
-                forM_ (IM.toList active) $ \(cid, cl) -> forM_ cl $ \(AClient _ Client {sessionId, connected, createdAt, rcvActiveAt, sndActiveAt, subscriptions}) -> do
+                forM_ (IM.toList active) $ \(cid, cl) -> forM_ cl $ \(AClient _ _ Client {sessionId, connected, createdAt, rcvActiveAt, sndActiveAt, subscriptions}) -> do
                   connected' <- bshow <$> readTVarIO connected
                   rcvActiveAt' <- strEncode <$> readTVarIO rcvActiveAt
                   sndActiveAt' <- strEncode <$> readTVarIO sndActiveAt
@@ -680,9 +683,9 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                   hPutStrLn h . B.unpack $ B.intercalate "," [bshow cid, encode sessionId, connected', strEncode createdAt, rcvActiveAt', sndActiveAt', bshow age, subscriptions']
               CPStats -> withUserRole $ do
                 ss <- unliftIO u $ asks serverStats
-                AMS _ st <- unliftIO u $ asks msgStore
-                let STMQueueStore {queues, notifiers} = stmQueueStore st
-                    getStat :: (ServerStats -> IORef a) -> IO a
+                AMS _ _ (st :: s) <- unliftIO u $ asks msgStore
+                QueueCounts {queueCount, notifierCount} <- queueCounts @(StoreQueue s) $ queueStore st
+                let getStat :: (ServerStats -> IORef a) -> IO a
                     getStat var = readIORef (var ss)
                     putStat :: Show a => String -> (ServerStats -> IORef a) -> IO ()
                     putStat label var = getStat var >>= \v -> hPutStrLn h $ label <> ": " <> show v
@@ -719,9 +722,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                 putStat "msgNtfsB" msgNtfsB
                 putStat "msgNtfExpired" msgNtfExpired
                 putStat "qCount" qCount
-                qCount2 <- M.size <$> readTVarIO queues
-                hPutStrLn h $ "qCount 2: " <> show qCount2
-                notifierCount <- M.size <$> readTVarIO notifiers
+                hPutStrLn h $ "qCount 2: " <> show queueCount
                 hPutStrLn h $ "notifiers: " <> show notifierCount
                 putStat "msgCount" msgCount
                 putStat "ntfCount" ntfCount
@@ -822,7 +823,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                       where
                         addSubs :: (Int, (Int, Int, Int, Int), Int, (Natural, Natural, Natural)) -> Maybe AClient -> IO (Int, (Int, Int, Int, Int), Int, (Natural, Natural, Natural))
                         addSubs acc Nothing = pure acc
-                        addSubs (!subCnt, cnts@(!c1, !c2, !c3, !c4), !clCnt, !qs) (Just acl@(AClient _ cl)) = do
+                        addSubs (!subCnt, cnts@(!c1, !c2, !c3, !c4), !clCnt, !qs) (Just acl@(AClient _ _ cl)) = do
                           subs <- readTVarIO $ subSel cl
                           cnts' <- case countSubs_ of
                             Nothing -> pure cnts
@@ -835,7 +836,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                           pure (subCnt + cnt, cnts', clCnt', qs')
                     clientTBQueueLengths' :: Foldable t => t (Maybe AClient) -> IO (Natural, Natural, Natural)
                     clientTBQueueLengths' = foldM (\acc -> maybe (pure acc) (addQueueLengths acc)) (0, 0, 0)
-                    addQueueLengths (!rl, !sl, !ml) (AClient _ cl) = do
+                    addQueueLengths (!rl, !sl, !ml) (AClient _ _ cl) = do
                       (rl', sl', ml') <- queueLengths cl
                       pure (rl + rl', sl + sl', ml + ml')
                     queueLengths Client {rcvQ, sndQ, msgQ} = do
@@ -855,7 +856,7 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                               SubThread _ -> (c1, c2, c3 + 1, c4)
                           ProhibitSub -> pure (c1, c2, c3, c4 + 1)
               CPDelete sId -> withUserRole $ unliftIO u $ do
-                AMS _ st <- asks msgStore
+                AMS _ _ st <- asks msgStore
                 r <- liftIO $ runExceptT $ do
                   q <- ExceptT $ getQueue st SSender sId
                   ExceptT $ deleteQueueSize st q
@@ -865,27 +866,27 @@ smpServer started cfg@ServerConfig {transports, transportConfig = tCfg, startOpt
                     updateDeletedStats qr
                     liftIO $ hPutStrLn h $ "ok, " <> show numDeleted <> " messages deleted"
               CPStatus sId -> withUserRole $ unliftIO u $ do
-                AMS _ st <- asks msgStore
+                AMS _ _ st <- asks msgStore
                 q <- liftIO $ getQueueRec st SSender sId
                 liftIO $ hPutStrLn h $ case q of
                   Left e -> "error: " <> show e
                   Right (_, QueueRec {sndSecure, status, updatedAt}) ->
                     "status: " <> show status <> ", updatedAt: " <> show updatedAt <> ", sndSecure: " <> show sndSecure
               CPBlock sId info -> withUserRole $ unliftIO u $ do
-                AMS _ st <- asks msgStore
+                AMS _ _ (st :: s) <- asks msgStore
                 r <- liftIO $ runExceptT $ do
                   q <- ExceptT $ getQueue st SSender sId
-                  ExceptT $ blockQueue st q info
+                  ExceptT $ blockQueue (queueStore st) q info
                 case r of
                   Left e -> liftIO $ hPutStrLn h $ "error: " <> show e
                   Right () -> do
                     incStat . qBlocked =<< asks serverStats
                     liftIO $ hPutStrLn h "ok"
               CPUnblock sId -> withUserRole $ unliftIO u $ do
-                AMS _ st <- asks msgStore
+                AMS _ _ (st :: s) <- asks msgStore
                 r <- liftIO $ runExceptT $ do
                   q <- ExceptT $ getQueue st SSender sId
-                  ExceptT $ unblockQueue st q
+                  ExceptT $ unblockQueue (queueStore st) q
                 liftIO $ hPutStrLn h $ case r of
                   Left e -> "error: " <> show e
                   Right () -> "ok"
@@ -917,13 +918,13 @@ runClientTransport h@THandle {params = thParams@THandleParams {thVersion, sessio
   nextClientId <- asks clientSeq
   clientId <- atomically $ stateTVar nextClientId $ \next -> (next, next + 1)
   atomically $ modifyTVar' active $ IM.insert clientId Nothing
-  AMS msType ms <- asks msgStore
-  c <- liftIO $ newClient msType clientId q thVersion sessionId ts
-  runClientThreads msType ms active c clientId `finally` clientDisconnected c
+  AMS qt mt ms <- asks msgStore
+  c <- liftIO $ newClient qt mt clientId q thVersion sessionId ts
+  runClientThreads qt mt ms active c clientId `finally` clientDisconnected c
   where
-    runClientThreads :: STMStoreClass (MsgStore s) => SMSType s -> MsgStore s -> TVar (IM.IntMap (Maybe AClient)) -> Client (MsgStore s) -> IS.Key -> M ()
-    runClientThreads msType ms active c clientId = do
-      atomically $ modifyTVar' active $ IM.insert clientId $ Just (AClient msType c)
+    runClientThreads :: MsgStoreClass (MsgStore qs ms) => SQSType qs -> SMSType ms -> MsgStore qs ms -> TVar (IM.IntMap (Maybe AClient)) -> Client (MsgStore qs ms) -> IS.Key -> M ()
+    runClientThreads qt mt ms active c clientId = do
+      atomically $ modifyTVar' active $ IM.insert clientId $ Just (AClient qt mt c)
       s <- asks server
       expCfg <- asks $ inactiveClientExpiration . config
       th <- newMVar h -- put TH under a fair lock to interleave messages and command responses
@@ -967,7 +968,7 @@ clientDisconnected c@Client {clientId, subscriptions, ntfSubscriptions, connecte
           mapM_ (\c' -> atomically $ whenM (sameClientId c <$> readTVar c') $ TM.delete qId srvSubs)
 
 sameClientId :: Client s -> AClient -> Bool
-sameClientId Client {clientId} (AClient _ Client {clientId = cId'}) = clientId == cId'
+sameClientId Client {clientId} ac = clientId == clientId' ac
 
 cancelSub :: Sub -> IO ()
 cancelSub s = case subThread s of
@@ -977,7 +978,7 @@ cancelSub s = case subThread s of
       _ -> pure ()
   ProhibitSub -> pure ()
 
-receive :: forall c s. (Transport c, STMStoreClass s) => THandleSMP c 'TServer -> s -> Client s -> M ()
+receive :: forall c s. (Transport c, MsgStoreClass s) => THandleSMP c 'TServer -> s -> Client s -> M ()
 receive h@THandle {params = THandleParams {thAuth}} ms Client {rcvQ, sndQ, rcvActiveAt, sessionId} = do
   labelMyThread . B.unpack $ "client $" <> encode sessionId <> " receive"
   sa <- asks serverActive
@@ -1077,7 +1078,7 @@ data VerificationResult s = VRVerified (Maybe (StoreQueue s, QueueRec)) | VRFail
 -- - the queue or party key do not exist.
 -- In all cases, the time of the verification should depend only on the provided authorization type,
 -- a dummy key is used to run verification in the last two cases, and failure is returned irrespective of the result.
-verifyTransmission :: forall s. STMStoreClass s => s -> Maybe (THandleAuth 'TServer, C.CbNonce) -> Maybe TransmissionAuth -> ByteString -> QueueId -> Cmd -> M (VerificationResult s)
+verifyTransmission :: forall s. MsgStoreClass s => s -> Maybe (THandleAuth 'TServer, C.CbNonce) -> Maybe TransmissionAuth -> ByteString -> QueueId -> Cmd -> M (VerificationResult s)
 verifyTransmission ms auth_ tAuth authorized queueId cmd =
   case cmd of
     Cmd SRecipient (NEW k _ _ _ _) -> pure $ Nothing `verifiedWith` k
@@ -1154,7 +1155,7 @@ forkClient Client {endThreads, endThreadSeq} label action = do
     action `finally` atomically (modifyTVar' endThreads $ IM.delete tId)
   mkWeakThreadId t >>= atomically . modifyTVar' endThreads . IM.insert tId
 
-client :: forall s. STMStoreClass s => THandleParams SMPVersion 'TServer -> Server -> s -> Client s -> M ()
+client :: forall s. MsgStoreClass s => THandleParams SMPVersion 'TServer -> Server -> s -> Client s -> M ()
 client
   thParams'
   Server {subscribedQ, ntfSubscribedQ, subscribers}
@@ -1325,7 +1326,7 @@ client
 
         secureQueue_ :: StoreQueue s -> SndPublicAuthKey -> M BrokerMsg
         secureQueue_ q sKey = do
-          liftIO (secureQueue ms q sKey) >>= \case
+          liftIO (secureQueue (queueStore ms) q sKey) >>= \case
             Left e -> pure $ ERR e
             Right () -> do
               stats <- asks serverStats
@@ -1343,7 +1344,7 @@ client
             addNotifierRetry n rcvPublicDhKey rcvNtfDhSecret = do
               notifierId <- randomId =<< asks (queueIdBytes . config)
               let ntfCreds = NtfCreds {notifierId, notifierKey, rcvNtfDhSecret}
-              liftIO (addQueueNotifier ms q ntfCreds) >>= \case
+              liftIO (addQueueNotifier (queueStore ms) q ntfCreds) >>= \case
                 Left DUPLICATE_ -> addNotifierRetry (n - 1) rcvPublicDhKey rcvNtfDhSecret
                 Left e -> pure $ ERR e
                 Right nId_ -> do
@@ -1353,7 +1354,7 @@ client
 
         deleteQueueNotifier_ :: StoreQueue s -> M (Transmission BrokerMsg)
         deleteQueueNotifier_ q =
-          liftIO (deleteQueueNotifier ms q) >>= \case
+          liftIO (deleteQueueNotifier (queueStore ms) q) >>= \case
             Right (Just nId) -> do
               -- Possibly, the same should be done if the queue is suspended, but currently we do not use it
               stats <- asks serverStats
@@ -1366,7 +1367,7 @@ client
             Left e -> pure $ err e
 
         suspendQueue_ :: (StoreQueue s, QueueRec) -> M (Transmission BrokerMsg)
-        suspendQueue_ (q, _) = liftIO $ either err (const ok) <$> suspendQueue ms q
+        suspendQueue_ (q, _) = liftIO $ either err (const ok) <$> suspendQueue (queueStore ms) q
 
         subscribeQueue :: StoreQueue s -> QueueRec -> M (Transmission BrokerMsg)
         subscribeQueue q qr =
@@ -1383,7 +1384,7 @@ client
                   incStat $ qSubDuplicate stats
                   atomically (tryTakeTMVar $ delivered s) >> deliver False s
           where
-            rId = recipientId' q
+            rId = recipientId q
             newSub :: M Sub
             newSub = time "SUB newSub" . atomically $ do
               writeTQueue subscribedQ (rId, clientId, True)
@@ -1447,7 +1448,7 @@ client
               t <- liftIO getSystemDate
               if updatedAt == Just t
                 then action q qr
-                else liftIO (updateQueueTime ms q t) >>= either (pure . err) (action q)
+                else liftIO (updateQueueTime (queueStore ms) q t) >>= either (pure . err) (action q)
 
         subscribeNotifications :: M (Transmission BrokerMsg)
         subscribeNotifications = do
@@ -1544,10 +1545,10 @@ client
                           when (notification msgFlags) $ do
                             mapM_ (`enqueueNotification` msg) (notifier qr)
                             incStat $ msgSentNtf stats
-                            liftIO $ updatePeriodStats (activeQueuesNtf stats) (recipientId' q)
+                            liftIO $ updatePeriodStats (activeQueuesNtf stats) (recipientId q)
                           incStat $ msgSent stats
                           incStat $ msgCount stats
-                          liftIO $ updatePeriodStats (activeQueues stats) (recipientId' q)
+                          liftIO $ updatePeriodStats (activeQueues stats) (recipientId q)
                           pure ok
           where
             mkMessage :: MsgId -> C.MaxLenBS MaxMessageLen -> IO Message
@@ -1575,14 +1576,14 @@ client
               whenM (TM.memberIO rId subscribers) $
                 atomically deliverToSub >>= mapM_ forkDeliver
               where
-                rId = recipientId' q
+                rId = recipientId q
                 deliverToSub =
                   -- lookup has ot be in the same transaction,
                   -- so that if subscription ends, it re-evalutates
                   -- and delivery is cancelled -
                   -- the new client will receive message in response to SUB.
                   (TM.lookup rId subscribers >>= mapM readTVar)
-                    $>>= \rc@(AClient _ Client {subscriptions = subs, sndQ = sndQ'}) -> TM.lookup rId subs
+                    $>>= \rc@(AClient _ _ Client {subscriptions = subs, sndQ = sndQ'}) -> TM.lookup rId subs
                     $>>= \s@Sub {subThread, delivered} -> case subThread of
                       ProhibitSub -> pure Nothing
                       ServerSub st -> readTVar st >>= \case
@@ -1599,7 +1600,7 @@ client
                   let encMsg = encryptMsg qr msg
                   writeTBQueue sndQ' [(CorrId "", rId, MSG encMsg)]
                   void $ setDelivered s msg
-                forkDeliver ((AClient _ rc@Client {sndQ = sndQ'}), s@Sub {delivered}, st) = do
+                forkDeliver ((AClient _ _ rc@Client {sndQ = sndQ'}), s@Sub {delivered}, st) = do
                   t <- mkWeakThreadId =<< forkIO deliverThread
                   atomically $ modifyTVar' st $ \case
                     -- this case is needed because deliverThread can exit before it
@@ -1798,28 +1799,27 @@ randomId = fmap EntityId . randomId'
 
 saveServerMessages :: Bool -> AMsgStore -> IO ()
 saveServerMessages drainMsgs = \case
-  AMS SMSMemory ms@STMMsgStore {storeConfig = STMStoreConfig {storePath}} -> case storePath of
+  AMS SQSMemory SMSMemory ms@STMMsgStore {storeConfig = STMStoreConfig {storePath}} -> case storePath of
     Just f -> exportMessages False ms f drainMsgs
     Nothing -> logInfo "undelivered messages are not saved"
-  AMS SMSJournal _ -> logInfo "closed journal message storage"
+  AMS _ SMSJournal _ -> logInfo "closed journal message storage"
 
 exportMessages :: MsgStoreClass s => Bool -> s -> FilePath -> Bool -> IO ()
 exportMessages tty ms f drainMsgs = do
   logInfo $ "saving messages to file " <> T.pack f
   liftIO $ withFile f WriteMode $ \h ->
-    tryAny (withAllMsgQueues tty ms $ saveQueueMsgs h) >>= \case
+    tryAny (unsafeWithAllMsgQueues tty ms $ saveQueueMsgs h) >>= \case
       Right (Sum total) -> logInfo $ "messages saved: " <> tshow total
       Left e -> do
         logError $ "error exporting messages: " <> tshow e
         exitFailure
   where
     saveQueueMsgs h q = do
-      let rId = recipientId' q
-      runExceptT (getQueueMessages drainMsgs ms q) >>= \case
-        Right msgs -> Sum (length msgs) <$ BLD.hPutBuilder h (encodeMessages rId msgs)
-        Left e -> do
-          logError $ "STORE: saveQueueMsgs, error exporting messages from queue " <> decodeLatin1 (strEncode rId) <> ", " <> tshow e
-          exitFailure
+      msgs <-
+        unsafeRunStore q "saveQueueMsgs" $
+          getQueueMessages_ drainMsgs q =<< getMsgQueue ms q False
+      BLD.hPutBuilder h $ encodeMessages (recipientId q) msgs
+      pure $ Sum $ length msgs
     encodeMessages rId = mconcat . map (\msg -> BLD.byteString (strEncode $ MLRv3 rId msg) <> BLD.char8 '\n')
 
 processServerMessages :: StartOptions -> M (Maybe MessageStats)
@@ -1830,41 +1830,34 @@ processServerMessages StartOptions {skipWarnings} = do
     where
       processMessages :: Maybe Int64 -> Bool -> AMsgStore -> IO (Maybe MessageStats)
       processMessages old_ expire = \case
-        AMS SMSMemory ms@STMMsgStore {storeConfig = STMStoreConfig {storePath}} -> case storePath of
+        AMS SQSMemory SMSMemory ms@STMMsgStore {storeConfig = STMStoreConfig {storePath}} -> case storePath of
           Just f -> ifM (doesFileExist f) (Just <$> importMessages False ms f old_ skipWarnings) (pure Nothing)
           Nothing -> pure Nothing
-        AMS SMSJournal ms
-          | expire -> Just <$> case old_ of
-              Just old -> do
-                logInfo "expiring journal store messages..."
-                withAllMsgQueues False ms $ processExpireQueue old
-              Nothing -> do
-                logInfo "validating journal store messages..."
-                withAllMsgQueues False ms $ processValidateQueue
-          | otherwise -> logWarn "skipping message expiration" $> Nothing
-          where
-            processExpireQueue old q =
-              runExceptT expireQueue >>= \case
-                Right (storedMsgsCount, expiredMsgsCount) ->
-                  pure MessageStats {storedMsgsCount, expiredMsgsCount, storedQueues = 1}
-                Left e -> do
-                  logError $ "STORE: processExpireQueue, failed expiring messages in queue, " <> tshow e
-                  exitFailure
-              where
-                expireQueue = do
-                  expired'' <- deleteExpiredMsgs ms q old
-                  stored'' <- getQueueSize ms q
-                  liftIO $ closeMsgQueue q
-                  pure (stored'', expired'')
-            processValidateQueue :: JournalQueue -> IO MessageStats
-            processValidateQueue q =
-              runExceptT (getQueueSize ms q) >>= \case
-                Right storedMsgsCount -> pure newMessageStats {storedMsgsCount, storedQueues = 1}
-                Left e -> do
-                  logError $ "STORE: processValidateQueue, failed opening message queue, " <> tshow e
-                  exitFailure
+        AMS _ SMSJournal ms -> processJournalMessages old_ expire ms
+      processJournalMessages :: forall s. Maybe Int64 -> Bool -> JournalMsgStore s -> IO (Maybe MessageStats)
+      processJournalMessages old_ expire ms
+        | expire = Just <$> case old_ of
+            Just old -> do
+              logInfo "expiring journal store messages..."
+              run $ processExpireQueue old
+            Nothing -> do
+              logInfo "validating journal store messages..."
+              run processValidateQueue
+        | otherwise = logWarn "skipping message expiration" $> Nothing
+        where
+          run a = unsafeWithAllMsgQueues False ms a `catchAny` \_ -> exitFailure
+          processExpireQueue :: Int64 -> JournalQueue s -> IO MessageStats
+          processExpireQueue old q = unsafeRunStore q "processExpireQueue" $ do
+            mq <- getMsgQueue ms q False
+            expiredMsgsCount <- deleteExpireMsgs_ old q mq
+            storedMsgsCount <- getQueueSize_ mq
+            pure MessageStats {storedMsgsCount, expiredMsgsCount, storedQueues = 1}
+          processValidateQueue :: JournalQueue s -> IO MessageStats
+          processValidateQueue q = unsafeRunStore q "processValidateQueue" $ do
+            storedMsgsCount <- getQueueSize_ =<< getMsgQueue ms q False
+            pure newMessageStats {storedMsgsCount, storedQueues = 1}
 
-importMessages :: forall s. STMStoreClass s => Bool -> s -> FilePath -> Maybe Int64 -> Bool -> IO MessageStats
+importMessages :: forall s. MsgStoreClass s => Bool -> s -> FilePath -> Maybe Int64 -> Bool -> IO MessageStats
 importMessages tty ms f old_ skipWarnings  = do
   logInfo $ "restoring messages from file " <> T.pack f
   (_, (storedMsgsCount, expiredMsgsCount, overQuota)) <-
@@ -1872,8 +1865,8 @@ importMessages tty ms f old_ skipWarnings  = do
   renameFile f $ f <> ".bak"
   mapM_ setOverQuota_ overQuota
   logQueueStates ms
-  storedQueues <- M.size <$> readTVarIO (queues $ stmQueueStore ms)
-  pure MessageStats {storedMsgsCount, expiredMsgsCount, storedQueues}
+  QueueCounts {queueCount} <- liftIO $ queueCounts @(StoreQueue s) $ queueStore ms
+  pure MessageStats {storedMsgsCount, expiredMsgsCount, storedQueues = queueCount}
   where
     restoreMsg :: (Maybe (RecipientId, StoreQueue s), (Int, Int, M.Map RecipientId (StoreQueue s))) -> Bool -> ByteString -> IO (Maybe (RecipientId, StoreQueue s), (Int, Int, M.Map RecipientId (StoreQueue s)))
     restoreMsg (q_, counts@(!stored, !expired, !overQuota)) eof s = case strDecode s of
@@ -1999,8 +1992,8 @@ restoreServerStats msgStats_ ntfStats = asks (serverStatsBackupFile . config) >>
       liftIO (strDecode <$> B.readFile f) >>= \case
         Right d@ServerStatsData {_qCount = statsQCount, _msgCount = statsMsgCount, _ntfCount = statsNtfCount} -> do
           s <- asks serverStats
-          AMS _ st <- asks msgStore
-          _qCount <- M.size <$> readTVarIO (queues $ stmQueueStore st)
+          AMS _ _ (st :: s) <- asks msgStore
+          QueueCounts {queueCount = _qCount} <- liftIO $ queueCounts @(StoreQueue s) $ queueStore st
           let _msgCount = maybe statsMsgCount storedMsgsCount msgStats_
               _ntfCount = storedMsgsCount ntfStats
               _msgExpired' = _msgExpired d + maybe 0 expiredMsgsCount msgStats_
diff --git a/src/Simplex/Messaging/Server/CLI.hs b/src/Simplex/Messaging/Server/CLI.hs
index feead1163..d7660cd0b 100644
--- a/src/Simplex/Messaging/Server/CLI.hs
+++ b/src/Simplex/Messaging/Server/CLI.hs
@@ -27,8 +27,11 @@ import qualified Data.X509.File as XF
 import Data.X509.Validation (Fingerprint (..))
 import Network.Socket (HostName, ServiceName)
 import Options.Applicative
+import Simplex.Messaging.Agent.Store.Postgres.Options (DBOpts (..))
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Protocol (ProtoServerWithAuth (..), ProtocolServer (..), ProtocolTypeI)
+import Simplex.Messaging.Server.Env.STM (AServerStoreCfg (..), ServerStoreCfg (..), StorePaths (..))
+import Simplex.Messaging.Server.QueueStore.Postgres.Config (PostgresStoreCfg (..))
 import Simplex.Messaging.Transport (ATransport (..), TLS, Transport (..))
 import Simplex.Messaging.Transport.Server (AddHTTP, loadFileFingerprint)
 import Simplex.Messaging.Transport.WebSockets (WS)
@@ -296,10 +299,21 @@ printServerConfig transports logFile = do
   putStrLn $ case logFile of
     Just f -> "Store log: " <> f
     _ -> "Store log disabled."
-  forM_ transports $ \(p, ATransport t, addHTTP) -> do
-    let descr = p <> " (" <> transportName t <> ")..."
-    putStrLn $ "Serving SMP protocol on port " <> descr
-    when addHTTP $ putStrLn $ "Serving static site on port " <> descr
+  printServerTransports transports
+
+printServerTransports :: [(ServiceName, ATransport, AddHTTP)] -> IO ()
+printServerTransports = mapM_ $ \(p, ATransport t, addHTTP) -> do
+  let descr = p <> " (" <> transportName t <> ")..."
+  putStrLn $ "Serving SMP protocol on port " <> descr
+  when addHTTP $ putStrLn $ "Serving static site on port " <> descr
+
+printSMPServerConfig :: [(ServiceName, ATransport, AddHTTP)] -> AServerStoreCfg -> IO ()
+printSMPServerConfig transports (ASSCfg _ _ cfg) = case cfg of
+  SSCMemory sp_ -> printServerConfig transports $ (\StorePaths {storeLogFile} -> storeLogFile) <$> sp_
+  SSCMemoryJournal {storeLogFile} -> printServerConfig transports $ Just storeLogFile
+  SSCDatabaseJournal {storeCfg = PostgresStoreCfg {dbOpts = DBOpts {connstr, schema}}} -> do
+    B.putStrLn $ "PostgreSQL database: " <> connstr <> ", schema: " <> schema
+    printServerTransports transports
 
 deleteDirIfExists :: FilePath -> IO ()
 deleteDirIfExists path = whenM (doesDirectoryExist path) $ removeDirectoryRecursive path
diff --git a/src/Simplex/Messaging/Server/Env/STM.hs b/src/Simplex/Messaging/Server/Env/STM.hs
index 005ce6d9b..160697feb 100644
--- a/src/Simplex/Messaging/Server/Env/STM.hs
+++ b/src/Simplex/Messaging/Server/Env/STM.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE AllowAmbiguousTypes #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE FlexibleContexts #-}
@@ -9,6 +11,12 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE StrictData #-}
 {-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE TypeApplications #-}
+{-# LANGUAGE TypeOperators #-}
+#if __GLASGOW_HASKELL__ == 810
+{-# LANGUAGE UndecidableInstances #-}
+#endif
+{-# OPTIONS_GHC -fno-warn-ambiguous-fields #-}
 
 module Simplex.Messaging.Server.Env.STM where
 
@@ -21,18 +29,22 @@ import Data.ByteString.Char8 (ByteString)
 import Data.Int (Int64)
 import Data.IntMap.Strict (IntMap)
 import qualified Data.IntMap.Strict as IM
+import Data.Kind (Constraint)
 import Data.List (intercalate)
 import Data.List.NonEmpty (NonEmpty)
-import Data.Maybe (isJust, isNothing)
+import Data.Maybe (isJust)
 import qualified Data.Text as T
 import Data.Time.Clock (getCurrentTime, nominalDay)
 import Data.Time.Clock.System (SystemTime)
 import qualified Data.X509 as X
 import Data.X509.Validation (Fingerprint (..))
+import GHC.TypeLits (TypeError)
+import qualified GHC.TypeLits as TE
 import Network.Socket (ServiceName)
 import qualified Network.TLS as T
 import Numeric.Natural
 import Simplex.Messaging.Agent.Lock
+import Simplex.Messaging.Agent.Store.Shared (MigrationConfirmation (..))
 import Simplex.Messaging.Client.Agent (SMPClientAgent, SMPClientAgentConfig, newSMPClientAgent)
 import Simplex.Messaging.Crypto (KeyHash (..))
 import qualified Simplex.Messaging.Crypto as C
@@ -44,9 +56,12 @@ import Simplex.Messaging.Server.MsgStore.STM
 import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.NtfStore
 import Simplex.Messaging.Server.QueueStore
-import Simplex.Messaging.Server.QueueStore.STM
+import Simplex.Messaging.Server.QueueStore.Postgres.Config
+import Simplex.Messaging.Server.QueueStore.STM (STMQueueStore, setStoreLog)
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.Server.Stats
 import Simplex.Messaging.Server.StoreLog
+import Simplex.Messaging.Server.StoreLog.ReadWrite
 import Simplex.Messaging.TMap (TMap)
 import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Transport (ATransport, VersionRangeSMP, VersionSMP)
@@ -61,14 +76,12 @@ data ServerConfig = ServerConfig
   { transports :: [(ServiceName, ATransport, AddHTTP)],
     smpHandshakeTimeout :: Int,
     tbqSize :: Natural,
-    msgStoreType :: AMSType,
     msgQueueQuota :: Int,
     maxJournalMsgCount :: Int,
     maxJournalStateLines :: Int,
     queueIdBytes :: Int,
     msgIdBytes :: Int,
-    storeLogFile :: Maybe FilePath,
-    storeMsgsFile :: Maybe FilePath,
+    serverStoreCfg :: AServerStoreCfg,
     storeNtfsFile :: Maybe FilePath,
     -- | set to False to prohibit creating new queues
     allowNewQueues :: Bool,
@@ -122,7 +135,9 @@ data ServerConfig = ServerConfig
 
 data StartOptions = StartOptions
   { maintenance :: Bool,
-    skipWarnings :: Bool
+    compactLog :: Bool,
+    skipWarnings :: Bool,
+    confirmMigrations :: MigrationConfirmation
   }
 
 defMsgExpirationDays :: Int64
@@ -191,19 +206,31 @@ data Env = Env
     proxyAgent :: ProxyAgent -- senders served on this proxy
   }
 
-type family MsgStore s where
-  MsgStore 'MSMemory = STMMsgStore
-  MsgStore 'MSJournal = JournalMsgStore
+type family SupportedStore (qs :: QSType) (ms :: MSType) :: Constraint where
+  SupportedStore 'QSMemory 'MSMemory = ()
+  SupportedStore 'QSMemory 'MSJournal = ()
+  SupportedStore 'QSPostgres 'MSJournal = ()
+  SupportedStore 'QSPostgres 'MSMemory =
+    (Int ~ Bool, TypeError ('TE.Text "Storing messages in memory with Postgres DB is not supported"))
 
-data AMsgStore = forall s. (STMStoreClass (MsgStore s), MsgStoreClass (MsgStore s)) => AMS (SMSType s) (MsgStore s)
+data AStoreType = forall qs ms. SupportedStore qs ms => ASType (SQSType qs) (SMSType ms)
 
-data AStoreQueue = forall s. MsgStoreClass (MsgStore s) => ASQ (SMSType s) (StoreQueue (MsgStore s))
+data ServerStoreCfg qs ms where
+  SSCMemory :: Maybe StorePaths -> ServerStoreCfg 'QSMemory 'MSMemory
+  SSCMemoryJournal :: {storeLogFile :: FilePath, storeMsgsPath :: FilePath} -> ServerStoreCfg 'QSMemory 'MSJournal
+  SSCDatabaseJournal :: {storeCfg :: PostgresStoreCfg, storeMsgsPath' :: FilePath} -> ServerStoreCfg 'QSPostgres 'MSJournal
 
-data AMsgStoreCfg = forall s. MsgStoreClass (MsgStore s) => AMSC (SMSType s) (MsgStoreConfig (MsgStore s))
+data StorePaths = StorePaths {storeLogFile :: FilePath, storeMsgsFile :: Maybe FilePath}
 
-msgPersistence :: AMsgStoreCfg -> Bool
-msgPersistence (AMSC SMSMemory (STMStoreConfig {storePath})) = isJust storePath
-msgPersistence (AMSC SMSJournal _) = True
+data AServerStoreCfg = forall qs ms. SupportedStore qs ms => ASSCfg (SQSType qs) (SMSType ms) (ServerStoreCfg qs ms)
+
+type family MsgStore (qs :: QSType) (ms :: MSType) where
+  MsgStore 'QSMemory 'MSMemory = STMMsgStore
+  MsgStore qs 'MSJournal = JournalMsgStore qs
+
+data AMsgStore =
+  forall qs ms. (SupportedStore qs ms, MsgStoreClass (MsgStore qs ms)) =>
+  AMS (SQSType qs) (SMSType ms) (MsgStore qs ms)
 
 type Subscribed = Bool
 
@@ -225,10 +252,11 @@ newtype ProxyAgent = ProxyAgent
 
 type ClientId = Int
 
-data AClient = forall s. MsgStoreClass (MsgStore s) => AClient (SMSType s) (Client (MsgStore s))
+data AClient = forall qs ms. MsgStoreClass (MsgStore qs ms) => AClient (SQSType qs) (SMSType ms) (Client (MsgStore qs ms))
 
 clientId' :: AClient -> ClientId
-clientId' (AClient _ Client {clientId}) = clientId
+clientId' (AClient _ _ Client {clientId}) = clientId
+{-# INLINE clientId' #-}
 
 data Client s = Client
   { clientId :: ClientId,
@@ -270,8 +298,8 @@ newServer = do
   savingLock <- createLockIO
   return Server {subscribedQ, subscribers, ntfSubscribedQ, notifiers, subClients, ntfSubClients, pendingSubEvents, pendingNtfSubEvents, savingLock}
 
-newClient :: SMSType s -> ClientId -> Natural -> VersionSMP -> ByteString -> SystemTime -> IO (Client (MsgStore s))
-newClient _msType clientId qSize thVersion sessionId createdAt = do
+newClient :: SQSType qs -> SMSType ms -> ClientId -> Natural -> VersionSMP -> ByteString -> SystemTime -> IO (Client (MsgStore qs ms))
+newClient _ _ clientId qSize thVersion sessionId createdAt = do
   subscriptions <- TM.emptyIO
   ntfSubscriptions <- TM.emptyIO
   rcvQ <- newTBQueueIO qSize
@@ -297,22 +325,34 @@ newProhibitedSub = do
   return Sub {subThread = ProhibitSub, delivered}
 
 newEnv :: ServerConfig -> IO Env
-newEnv config@ServerConfig {smpCredentials, httpCredentials, storeLogFile, msgStoreType, storeMsgsFile, smpAgentCfg, information, messageExpiration, idleQueueInterval, msgQueueQuota, maxJournalMsgCount, maxJournalStateLines} = do
+newEnv config@ServerConfig {smpCredentials, httpCredentials, serverStoreCfg, smpAgentCfg, information, messageExpiration, idleQueueInterval, msgQueueQuota, maxJournalMsgCount, maxJournalStateLines} = do
   serverActive <- newTVarIO True
   server <- newServer
-  msgStore@(AMS _ store) <- case msgStoreType of
-    AMSType SMSMemory -> AMS SMSMemory <$> newMsgStore STMStoreConfig {storePath = storeMsgsFile, quota = msgQueueQuota}
-    AMSType SMSJournal -> case storeMsgsFile of
-      Just storePath ->
-        let cfg = mkJournalStoreConfig storePath msgQueueQuota maxJournalMsgCount maxJournalStateLines idleQueueInterval
-         in AMS SMSJournal <$> newMsgStore cfg
-      Nothing -> putStrLn "Error: journal msg store require path in [STORE_LOG], restore_messages" >> exitFailure
+  msgStore <- case serverStoreCfg of
+    ASSCfg qt mt (SSCMemory storePaths_) -> do
+      let storePath = storeMsgsFile =<< storePaths_
+      ms <- newMsgStore STMStoreConfig {storePath, quota = msgQueueQuota}
+      forM_ storePaths_ $ \StorePaths {storeLogFile = f} -> loadStoreLog (mkQueue ms) f $ queueStore ms
+      pure $ AMS qt mt ms
+    ASSCfg qt mt SSCMemoryJournal {storeLogFile, storeMsgsPath} -> do
+      let qsCfg = MQStoreCfg
+          cfg = mkJournalStoreConfig qsCfg storeMsgsPath msgQueueQuota maxJournalMsgCount maxJournalStateLines idleQueueInterval
+      ms <- newMsgStore cfg
+      loadStoreLog (mkQueue ms) storeLogFile $ stmQueueStore ms
+      pure $ AMS qt mt ms
+#if defined(dbServerPostgres)
+    ASSCfg qt mt SSCDatabaseJournal {storeCfg, storeMsgsPath'} -> do
+      let StartOptions {compactLog, confirmMigrations} = startOptions config
+          qsCfg = PQStoreCfg (storeCfg {confirmMigrations} :: PostgresStoreCfg)
+          cfg = mkJournalStoreConfig qsCfg storeMsgsPath' msgQueueQuota maxJournalMsgCount maxJournalStateLines idleQueueInterval
+      when compactLog $ compactDbStoreLog $ dbStoreLogPath storeCfg
+      ms <- newMsgStore cfg
+      pure $ AMS qt mt ms
+#else
+    ASSCfg _ _ SSCDatabaseJournal {} -> noPostgresExit
+#endif
   ntfStore <- NtfStore <$> TM.emptyIO
   random <- C.newRandom
-  forM_ storeLogFile $ \f -> do
-    logInfo $ "restoring queues from file " <> T.pack f
-    sl <- readWriteQueueStore f store
-    setStoreLog store sl
   tlsServerCreds <- getCredentials "SMP" smpCredentials
   httpServerCreds <- mapM (getCredentials "HTTPS") httpCredentials
   mapM_ checkHTTPSCredentials httpServerCreds
@@ -325,6 +365,21 @@ newEnv config@ServerConfig {smpCredentials, httpCredentials, storeLogFile, msgSt
   proxyAgent <- newSMPProxyAgent smpAgentCfg random
   pure Env {serverActive, config, serverInfo, server, serverIdentity, msgStore, ntfStore, random, tlsServerCreds, httpServerCreds, serverStats, sockets, clientSeq, clients, proxyAgent}
   where
+    loadStoreLog :: StoreQueueClass q => (RecipientId -> QueueRec -> IO q) -> FilePath -> STMQueueStore q -> IO ()
+    loadStoreLog mkQ f st = do
+      logInfo $ "restoring queues from file " <> T.pack f
+      sl <- readWriteQueueStore False mkQ f st
+      setStoreLog st sl
+    compactDbStoreLog = \case
+      Just f -> do
+        logInfo $ "compacting queues in file " <> T.pack f
+        st <- newMsgStore STMStoreConfig {storePath = Nothing, quota = msgQueueQuota}
+        sl <- readWriteQueueStore False (mkQueue st) f (queueStore st)
+        setStoreLog (queueStore st) sl
+        closeMsgStore st
+      Nothing -> do
+        logError "Error: `--compact-log` used without `db_store_log` INI option"
+        exitFailure
     getCredentials protocol creds = do
       files <- missingCreds
       unless (null files) $ do
@@ -358,17 +413,26 @@ newEnv config@ServerConfig {smpCredentials, httpCredentials, storeLogFile, msgSt
               }
         }
       where
-        persistence
-          | isNothing storeLogFile = SPMMemoryOnly
-          | isJust storeMsgsFile = SPMMessages
-          | otherwise = SPMQueues
+        persistence = case serverStoreCfg of
+          ASSCfg _ _ (SSCMemory sp_) -> case sp_ of
+            Nothing -> SPMMemoryOnly
+            Just StorePaths {storeMsgsFile = Just _} -> SPMMessages
+            _ -> SPMQueues
+          _ -> SPMMessages
 
-mkJournalStoreConfig :: FilePath -> Int -> Int -> Int -> Int64 -> JournalStoreConfig
-mkJournalStoreConfig storePath msgQueueQuota maxJournalMsgCount maxJournalStateLines idleQueueInterval =
+noPostgresExit :: IO a
+noPostgresExit = do
+  putStrLn "Error: server binary is compiled without support for PostgreSQL database."
+  putStrLn "Please download `smp-server-postgres` or re-compile with `cabal build -fserver_postgres`."
+  exitFailure
+
+mkJournalStoreConfig :: QStoreCfg s -> FilePath -> Int -> Int -> Int -> Int64 -> JournalStoreConfig s
+mkJournalStoreConfig queueStoreCfg storePath msgQueueQuota maxJournalMsgCount maxJournalStateLines idleQueueInterval =
   JournalStoreConfig
     { storePath,
       quota = msgQueueQuota,
       pathParts = journalMsgStoreDepth,
+      queueStoreCfg,
       maxMsgCount = maxJournalMsgCount,
       maxStateLines = maxJournalStateLines,
       stateTailSize = defaultStateTailSize,
@@ -382,5 +446,5 @@ newSMPProxyAgent smpAgentCfg random = do
   smpAgent <- newSMPClientAgent smpAgentCfg random
   pure ProxyAgent {smpAgent}
 
-readWriteQueueStore :: STMStoreClass s => FilePath -> s -> IO (StoreLog 'WriteMode)
-readWriteQueueStore = readWriteStoreLog readQueueStore writeQueueStore
+readWriteQueueStore :: forall q s. QueueStoreClass q s => Bool -> (RecipientId -> QueueRec -> IO q) -> FilePath -> s -> IO (StoreLog 'WriteMode)
+readWriteQueueStore tty mkQ = readWriteStoreLog (readQueueStore tty mkQ) (writeQueueStore @q)
diff --git a/src/Simplex/Messaging/Server/Main.hs b/src/Simplex/Messaging/Server/Main.hs
index e35803171..6c930ba0b 100644
--- a/src/Simplex/Messaging/Server/Main.hs
+++ b/src/Simplex/Messaging/Server/Main.hs
@@ -1,7 +1,10 @@
 {-# LANGUAGE ApplicativeDo #-}
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE DataKinds #-}
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE MultiWayIf #-}
 {-# LANGUAGE NamedFieldPuns #-}
 {-# LANGUAGE OverloadedLists #-}
 {-# LANGUAGE OverloadedStrings #-}
@@ -30,9 +33,10 @@ import Data.Text (Text)
 import qualified Data.Text as T
 import Data.Text.Encoding (decodeLatin1, encodeUtf8)
 import qualified Data.Text.IO as T
-import Network.Socket (HostName)
 import Options.Applicative
 import Simplex.Messaging.Agent.Protocol (connReqUriP')
+import Simplex.Messaging.Agent.Store.Postgres.Options (DBOpts (..))
+import Simplex.Messaging.Agent.Store.Shared (MigrationConfirmation (..))
 import Simplex.Messaging.Client (HostMode (..), NetworkConfig (..), ProtocolClientConfig (..), SocksMode (..), defaultNetworkConfig, textToHostMode)
 import Simplex.Messaging.Client.Agent (SMPClientAgentConfig (..), defaultSMPClientAgentConfig)
 import qualified Simplex.Messaging.Crypto as C
@@ -44,18 +48,33 @@ import Simplex.Messaging.Server.CLI
 import Simplex.Messaging.Server.Env.STM
 import Simplex.Messaging.Server.Expiration
 import Simplex.Messaging.Server.Information
-import Simplex.Messaging.Server.MsgStore.Types (AMSType (..), SMSType (..), newMsgStore)
-import Simplex.Messaging.Server.QueueStore.STM (readQueueStore)
+import Simplex.Messaging.Server.Main.Init
+import Simplex.Messaging.Server.MsgStore.Journal (JournalMsgStore (..), QStoreCfg (..), stmQueueStore)
+import Simplex.Messaging.Server.MsgStore.Types (MsgStoreClass (..), SQSType (..), SMSType (..), newMsgStore)
+import Simplex.Messaging.Server.QueueStore.Postgres.Config
+import Simplex.Messaging.Server.StoreLog.ReadWrite (readQueueStore)
 import Simplex.Messaging.Transport (simplexMQVersion, supportedProxyClientSMPRelayVRange, supportedServerSMPRelayVRange)
-import Simplex.Messaging.Transport.Client (SocksProxy, TransportHost (..), defaultSocksProxy)
+import Simplex.Messaging.Transport.Client (TransportHost (..), defaultSocksProxy)
 import Simplex.Messaging.Transport.Server (ServerCredentials (..), TransportServerConfig (..), defaultTransportServerConfig)
-import Simplex.Messaging.Util (eitherToMaybe, ifM, safeDecodeUtf8, tshow)
+import Simplex.Messaging.Util (eitherToMaybe, ifM)
 import System.Directory (createDirectoryIfMissing, doesDirectoryExist, doesFileExist)
 import System.Exit (exitFailure)
 import System.FilePath (combine)
 import System.IO (BufferMode (..), hSetBuffering, stderr, stdout)
 import Text.Read (readMaybe)
 
+#if defined(dbServerPostgres)
+import Data.Semigroup (Sum (..))
+import Simplex.Messaging.Agent.Store.Postgres (checkSchemaExists)
+import Simplex.Messaging.Server.MsgStore.Journal (JournalQueue)
+import Simplex.Messaging.Server.MsgStore.Types (QSType (..))
+import Simplex.Messaging.Server.MsgStore.Journal (postgresQueueStore)
+import Simplex.Messaging.Server.QueueStore.Postgres (batchInsertQueues, foldQueueRecs)
+import Simplex.Messaging.Server.QueueStore.Types
+import Simplex.Messaging.Server.StoreLog (closeStoreLog, logCreateQueue, openWriteStoreLog)
+import System.Directory (renameFile)
+#endif
+
 smpServerCLI :: FilePath -> FilePath -> IO ()
 smpServerCLI = smpServerCLI_ (\_ _ _ -> pure ()) (\_ -> pure ()) (\_ -> error "attachStaticFiles not available")
 
@@ -84,37 +103,30 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
     Journal cmd -> withIniFile $ \ini -> do
       msgsDirExists <- doesDirectoryExist storeMsgsJournalDir
       msgsFileExists <- doesFileExist storeMsgsFilePath
-      let enableStoreLog = settingIsOn "STORE_LOG" "enable" ini
-      storeLogFile <- case enableStoreLog $> storeLogFilePath of
-        Just storeLogFile -> do
-          ifM
-            (doesFileExist storeLogFile)
-            (pure storeLogFile)
-            (putStrLn ("Store log file " <> storeLogFile <> " not found") >> exitFailure)
-        Nothing -> putStrLn "Store log disabled, see `[STORE_LOG] enable`" >> exitFailure
+      storeLogFile <- getRequiredStoreLogFile ini
       case cmd of
-        JCImport
+        SCImport
           | msgsFileExists && msgsDirExists -> exitConfigureMsgStorage
           | msgsDirExists -> do
               putStrLn $ storeMsgsJournalDir <> " directory already exists."
               exitFailure
           | not msgsFileExists -> do
-              putStrLn $ storeMsgsFilePath <> " file does not exists."
+              putStrLn $ storeMsgsFilePath <> " file does not exist."
               exitFailure
           | otherwise -> do
               confirmOrExit
                 ("WARNING: message log file " <> storeMsgsFilePath <> " will be imported to journal directory " <> storeMsgsJournalDir)
                 "Messages not imported"
-              ms <- newJournalMsgStore
-              readQueueStore storeLogFile ms
+              ms <- newJournalMsgStore MQStoreCfg
+              readQueueStore True (mkQueue ms) storeLogFile $ stmQueueStore ms
               msgStats <- importMessages True ms storeMsgsFilePath Nothing False -- no expiration
               putStrLn "Import completed"
               printMessageStats "Messages" msgStats
-              putStrLn $ case readMsgStoreType ini of
-                Right (AMSType SMSMemory) -> "store_messages set to `memory`, update it to `journal` in INI file"
-                Right (AMSType SMSJournal) -> "store_messages set to `journal`"
-                Left e -> e <> ", update it to `journal` in INI file"
-        JCExport
+              putStrLn $ case readStoreType ini of
+                Right (ASType SQSMemory SMSMemory) -> "store_messages set to `memory`, update it to `journal` in INI file"
+                Right (ASType _ SMSJournal) -> "store_messages set to `journal`"
+                Left e -> e <> ", configure storage correctly"
+        SCExport
           | msgsFileExists && msgsDirExists -> exitConfigureMsgStorage
           | msgsFileExists -> do
               putStrLn $ storeMsgsFilePath <> " file already exists."
@@ -123,15 +135,22 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
               confirmOrExit
                 ("WARNING: journal directory " <> storeMsgsJournalDir <> " will be exported to message log file " <> storeMsgsFilePath)
                 "Journal not exported"
-              ms <- newJournalMsgStore
-              readQueueStore storeLogFile ms
+              ms <- newJournalMsgStore MQStoreCfg
+              -- TODO [postgres] in case postgres configured, queues must be read from database
+              readQueueStore True (mkQueue ms) storeLogFile $ stmQueueStore ms
               exportMessages True ms storeMsgsFilePath False
               putStrLn "Export completed"
-              putStrLn $ case readMsgStoreType ini of
-                Right (AMSType SMSMemory) -> "store_messages set to `memory`"
-                Right (AMSType SMSJournal) -> "store_messages set to `journal`, update it to `memory` in INI file"
-                Left e -> e <> ", update it to `memory` in INI file"
-        JCDelete
+              case readStoreType ini of
+                Right (ASType SQSMemory SMSMemory) -> putStrLn "store_messages set to `memory`, start the server."
+                Right (ASType SQSMemory SMSJournal) -> putStrLn "store_messages set to `journal`, update it to `memory` in INI file"
+                Right (ASType SQSPostgres SMSJournal) -> 
+#if defined(dbServerPostgres)
+                  putStrLn "store_messages set to `journal`, store_queues is set to `database`.\nExport queues to store log to use memory storage for messages (`smp-server database export`)."
+#else
+                  noPostgresExit
+#endif
+                Left e -> putStrLn $ e <> ", configure storage correctly"
+        SCDelete
           | not msgsDirExists -> do
               putStrLn $ storeMsgsJournalDir <> " directory does not exists."
               exitFailure
@@ -141,34 +160,121 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
                 "Messages NOT deleted"
               deleteDirIfExists storeMsgsJournalDir
               putStrLn $ "Deleted all messages in journal " <> storeMsgsJournalDir
+#if defined(dbServerPostgres)              
+    Database cmd dbOpts@DBOpts {connstr, schema} -> withIniFile $ \ini -> do
+      schemaExists <- checkSchemaExists connstr schema
+      storeLogExists <- doesFileExist storeLogFilePath
+      case cmd of
+        SCImport
+          | schemaExists && storeLogExists -> exitConfigureQueueStore connstr schema
+          | schemaExists -> do
+              putStrLn $ "Schema " <> B.unpack schema <> " already exists in PostrgreSQL database: " <> B.unpack connstr
+              exitFailure
+          | not storeLogExists -> do
+              putStrLn $ storeLogFilePath <> " file does not exist."
+              exitFailure
+          | otherwise -> do
+              storeLogFile <- getRequiredStoreLogFile ini
+              confirmOrExit
+                ("WARNING: store log file " <> storeLogFile <> " will be compacted and imported to PostrgreSQL database: " <> B.unpack connstr <> ", schema: " <> B.unpack schema)
+                "Queue records not imported"
+              ms <- newJournalMsgStore MQStoreCfg
+              sl <- readWriteQueueStore True (mkQueue ms) storeLogFile (queueStore ms)
+              closeStoreLog sl
+              queues <- readTVarIO $ loadedQueues $ stmQueueStore ms
+              let storeCfg = PostgresStoreCfg {dbOpts = dbOpts {createSchema = True}, dbStoreLogPath = Nothing, confirmMigrations = MCConsole, deletedTTL = iniDeletedTTL ini}
+              ps <- newJournalMsgStore $ PQStoreCfg storeCfg
+              qCnt <- batchInsertQueues @(JournalQueue 'QSMemory) True queues $ postgresQueueStore ps
+              renameFile storeLogFile $ storeLogFile <> ".bak"
+              putStrLn $ "Import completed: " <> show qCnt <> " queues"
+              putStrLn $ case readStoreType ini of
+                Right (ASType SQSMemory SMSMemory) -> setToDbStr <> "\nstore_messages set to `memory`, import messages to journal to use PostgreSQL database for queues (`smp-server journal import`)"
+                Right (ASType SQSMemory SMSJournal) -> setToDbStr
+                Right (ASType SQSPostgres SMSJournal) -> "store_queues set to `database`, start the server."
+                Left e -> e <> ", configure storage correctly"
+          where
+            setToDbStr :: String
+            setToDbStr = "store_queues set to `memory`, update it to `database` in INI file"
+        SCExport
+          | schemaExists && storeLogExists -> exitConfigureQueueStore connstr schema
+          | not schemaExists -> do
+              putStrLn $ "Schema " <> B.unpack schema <> " does not exist in PostrgreSQL database: " <> B.unpack connstr
+              exitFailure
+          | storeLogExists -> do
+              putStrLn $ storeLogFilePath <> " file already exists."
+              exitFailure
+          | otherwise -> do
+              confirmOrExit
+                ("WARNING: PostrgreSQL database schema " <> B.unpack schema <> " (database: " <> B.unpack connstr <> ") will be exported to store log file " <> storeLogFilePath)
+                "Queue records not exported"
+              let storeCfg = PostgresStoreCfg {dbOpts, dbStoreLogPath = Nothing, confirmMigrations = MCConsole, deletedTTL = iniDeletedTTL ini}
+              ps <- newJournalMsgStore $ PQStoreCfg storeCfg
+              sl <- openWriteStoreLog False storeLogFilePath
+              Sum qCnt <- foldQueueRecs True (postgresQueueStore ps) $ \(rId, qr) -> logCreateQueue sl rId qr $> Sum (1 :: Int)
+              putStrLn $ "Export completed: " <> show qCnt <> " queues"
+              putStrLn $ case readStoreType ini of
+                Right (ASType SQSPostgres SMSJournal) -> "store_queues set to `database`, update it to `memory` in INI file."
+                Right (ASType SQSMemory _) -> "store_queues set to `memory`, start the server"
+                Left e -> e <> ", configure storage correctly"
+        SCDelete
+          | not schemaExists -> do
+              putStrLn $ "Schema " <> B.unpack schema <> " does not exist in PostrgreSQL database: " <> B.unpack connstr
+              exitFailure
+          | otherwise -> do
+              putStrLn $ "Open database: psql " <> B.unpack connstr
+              putStrLn $ "Delete schema: DROP SCHEMA " <> B.unpack schema <> " CASCADE;"
+#else
+    Database {} -> noPostgresExit
+#endif
   where
     withIniFile a =
       doesFileExist iniFile >>= \case
         True -> readIniFile iniFile >>= either exitError a
         _ -> exitError $ "Error: server is not initialized (" <> iniFile <> " does not exist).\nRun `" <> executableName <> " init`."
-    newJournalMsgStore =
-      let cfg = mkJournalStoreConfig storeMsgsJournalDir defaultMsgQueueQuota defaultMaxJournalMsgCount defaultMaxJournalStateLines $ checkInterval defaultMessageExpiration
+    getRequiredStoreLogFile ini = do
+      case enableStoreLog' ini $> storeLogFilePath of
+        Just storeLogFile -> do
+          ifM
+            (doesFileExist storeLogFile)
+            (pure storeLogFile)
+            (putStrLn ("Store log file " <> storeLogFile <> " not found") >> exitFailure)
+        Nothing -> putStrLn "Store log disabled, see `[STORE_LOG] enable`" >> exitFailure
+    newJournalMsgStore :: QStoreCfg s -> IO (JournalMsgStore s)
+    newJournalMsgStore qsCfg =
+      let cfg = mkJournalStoreConfig qsCfg storeMsgsJournalDir defaultMsgQueueQuota defaultMaxJournalMsgCount defaultMaxJournalStateLines $ checkInterval defaultMessageExpiration
        in newMsgStore cfg
     iniFile = combine cfgPath "smp-server.ini"
     serverVersion = "SMP server v" <> simplexMQVersion
-    defaultServerPorts = "5223,443"
     executableName = "smp-server"
     storeLogFilePath = combine logPath "smp-server-store.log"
     storeMsgsFilePath = combine logPath "smp-server-messages.log"
     storeMsgsJournalDir = combine logPath "messages"
     storeNtfsFilePath = combine logPath "smp-server-ntfs.log"
-    readMsgStoreType :: Ini -> Either String AMSType
-    readMsgStoreType = textToMsgStoreType . fromRight "memory" . lookupValue "STORE_LOG" "store_messages"
-    textToMsgStoreType = \case
-      "memory" -> Right $ AMSType SMSMemory
-      "journal" -> Right $ AMSType SMSJournal
-      s -> Left $ "invalid store_messages: " <> T.unpack s
-    httpsCertFile = combine cfgPath "web.crt"
-    httpsKeyFile = combine cfgPath "web.key"
+    readStoreType :: Ini -> Either String AStoreType
+    readStoreType ini = case (iniStoreQueues, iniStoreMessage) of
+      ("memory", "memory") -> Right $ ASType SQSMemory SMSMemory
+      ("memory", "journal") -> Right $ ASType SQSMemory SMSJournal
+      ("database", "journal") -> Right $ ASType SQSPostgres SMSJournal
+      ("database", "memory") -> Left "Using PostgreSQL database requires journal memory storage."
+      (q, m) -> Left $ T.unpack $ "Invalid storage settings: store_queues: " <> q <> ", store_messages: " <> m
+      where
+        iniStoreQueues = fromRight "memory" $ lookupValue "STORE_LOG" "store_queues" ini
+        iniStoreMessage = fromRight "memory" $ lookupValue "STORE_LOG" "store_messages" ini
+    iniDBOptions ini =
+      DBOpts
+        { connstr = either (const defaultDBConnStr) encodeUtf8 $ lookupValue "STORE_LOG" "db_connection" ini,
+          schema = either (const defaultDBSchema) encodeUtf8 $ lookupValue "STORE_LOG" "db_schema" ini,
+          poolSize = readIniDefault defaultDBPoolSize "STORE_LOG" "db_pool_size" ini,
+          createSchema = False
+        }
+    iniDeletedTTL ini = readIniDefault (86400 * defaultDeletedTTL) "STORE_LOG" "db_deleted_ttl" ini
     defaultStaticPath = combine logPath "www"
-    initializeServer opts@InitOptions {ip, fqdn, sourceCode = src', webStaticPath = sp', disableWeb = noWeb', scripted}
-      | scripted = initialize opts
+    enableStoreLog' = settingIsOn "STORE_LOG" "enable"
+    enableDbStoreLog' = settingIsOn "STORE_LOG" "db_store_log"
+    initializeServer opts
+      | scripted opts = initialize opts
       | otherwise = do
+          let InitOptions {ip, fqdn, sourceCode = src', webStaticPath = sp', disableWeb = noWeb'} = opts
           putStrLn "Use `smp-server init -h` for available options."
           checkInitOptions opts
           void $ withPrompt "SMP server will be initialized (press Enter)" getLine
@@ -210,7 +316,7 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
                     Just "Error: passing --hosting-country requires passing --hosting"
                 | otherwise = Nothing
           forM_ err_ $ \err -> putStrLn err >> exitFailure
-        initialize opts'@InitOptions {enableStoreLog, logStats, signAlgorithm, password, controlPort, socksProxy, ownDomains, sourceCode, webStaticPath, disableWeb} = do
+        initialize opts'@InitOptions {ip, fqdn, signAlgorithm, password, controlPort, sourceCode} = do
           checkInitOptions opts'
           clearDirIfExists cfgPath
           clearDirIfExists logPath
@@ -222,7 +328,7 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
           controlPortPwds <- forM controlPort $ \_ -> let pwd = decodeLatin1 <$> randomBase64 18 in (,) <$> pwd <*> pwd
           let host = fromMaybe (if ip == "127.0.0.1" then "<hostnames>" else ip) fqdn
               srv = ProtoServerWithAuth (SMPServer [THDomainName host] "" (C.KeyHash fp)) basicAuth
-          T.writeFile iniFile $ iniFileContent host basicAuth controlPortPwds
+          T.writeFile iniFile $ iniFileContent cfgPath logPath opts' host basicAuth controlPortPwds
           putStrLn $ "Server initialized, please provide additional server information in " <> iniFile <> "."
           putStrLn $ "Run `" <> executableName <> " start` to start server."
           warnCAPrivateKeyFile cfgPath x509cfg
@@ -233,108 +339,19 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
               ServerPassword s -> pure s
               SPRandom -> BasicAuth <$> randomBase64 32
             randomBase64 n = strEncode <$> (atomically . C.randomBytes n =<< C.newRandom)
-            iniFileContent host basicAuth controlPortPwds =
-              informationIniContent opts'
-                <> "[STORE_LOG]\n\
-                   \# The server uses STM memory for persistence,\n\
-                   \# that will be lost on restart (e.g., as with redis).\n\
-                   \# This option enables saving memory to append only log,\n\
-                   \# and restoring it when the server is started.\n\
-                   \# Log is compacted on start (deleted objects are removed).\n"
-                <> ("enable: " <> onOff enableStoreLog <> "\n\n")
-                <> "# Message storage mode: `memory` or `journal`.\n\
-                   \store_messages: memory\n\n\
-                   \# When store_messages is `memory`, undelivered messages are optionally saved and restored\n\
-                   \# when the server restarts, they are preserved in the .bak file until the next restart.\n"
-                <> ("restore_messages: " <> onOff enableStoreLog <> "\n\n")
-                <> "# Messages and notifications expiration periods.\n"
-                <> ("expire_messages_days: " <> tshow defMsgExpirationDays <> "\n")
-                <> "expire_messages_on_start: on\n"
-                <> ("expire_ntfs_hours: " <> tshow defNtfExpirationHours <> "\n\n")
-                <> "# Log daily server statistics to CSV file\n"
-                <> ("log_stats: " <> onOff logStats <> "\n\n")
-                <> "# Log interval for real-time Prometheus metrics\n\
-                   \# prometheus_interval: 300\n\n\
-                   \[AUTH]\n\
-                   \# Set new_queues option to off to completely prohibit creating new messaging queues.\n\
-                   \# This can be useful when you want to decommission the server, but not all connections are switched yet.\n\
-                   \new_queues: on\n\n\
-                   \# Use create_password option to enable basic auth to create new messaging queues.\n\
-                   \# The password should be used as part of server address in client configuration:\n\
-                   \# smp://fingerprint:password@host1,host2\n\
-                   \# The password will not be shared with the connecting contacts, you must share it only\n\
-                   \# with the users who you want to allow creating messaging queues on your server.\n"
-                <> ( let noPassword = "password to create new queues and forward messages (any printable ASCII characters without whitespace, '@', ':' and '/')"
-                      in optDisabled basicAuth <> "create_password: " <> maybe noPassword (safeDecodeUtf8 . strEncode) basicAuth
-                   )
-                <> "\n\n"
-                <> (optDisabled controlPortPwds <> "control_port_admin_password: " <> maybe "" fst controlPortPwds <> "\n")
-                <> (optDisabled controlPortPwds <> "control_port_user_password: " <> maybe "" snd controlPortPwds <> "\n")
-                <> "\n\
-                   \[TRANSPORT]\n\
-                   \# Host is only used to print server address on start.\n\
-                   \# You can specify multiple server ports.\n"
-                <> ("host: " <> T.pack host <> "\n")
-                <> ("port: " <> T.pack defaultServerPorts <> "\n")
-                <> "log_tls_errors: off\n\n\
-                   \# Use `websockets: 443` to run websockets server in addition to plain TLS.\n\
-                   \# This option is deprecated and should be used for testing only.\n\
-                   \# , port 443 should be specified in port above\n\
-                   \websockets: off\n"
-                <> (optDisabled controlPort <> "control_port: " <> tshow (fromMaybe defaultControlPort controlPort))
-                <> "\n\n\
-                   \[PROXY]\n\
-                   \# Network configuration for SMP proxy client.\n\
-                   \# `host_mode` can be 'public' (default) or 'onion'.\n\
-                   \# It defines prefferred hostname for destination servers with multiple hostnames.\n\
-                   \# host_mode: public\n\
-                   \# required_host_mode: off\n\n\
-                   \# The domain suffixes of the relays you operate (space-separated) to count as separate proxy statistics.\n"
-                <> (optDisabled ownDomains <> "own_server_domains: " <> maybe "" (safeDecodeUtf8 . strEncode) ownDomains)
-                <> "\n\n\
-                   \# SOCKS proxy port for forwarding messages to destination servers.\n\
-                   \# You may need a separate instance of SOCKS proxy for incoming single-hop requests.\n"
-                <> (optDisabled socksProxy <> "socks_proxy: " <> maybe "localhost:9050" (safeDecodeUtf8 . strEncode) socksProxy)
-                <> "\n\n\
-                   \# `socks_mode` can be 'onion' for SOCKS proxy to be used for .onion destination hosts only (default)\n\
-                   \# or 'always' to be used for all destination hosts (can be used if it is an .onion server).\n\
-                   \# socks_mode: onion\n\n\
-                   \# Limit number of threads a client can spawn to process proxy commands in parrallel.\n"
-                <> ("# client_concurrency: " <> tshow defaultProxyClientConcurrency)
-                <> "\n\n\
-                   \[INACTIVE_CLIENTS]\n\
-                   \# TTL and interval to check inactive clients\n\
-                   \disconnect: on\n"
-                <> ("ttl: " <> tshow (ttl defaultInactiveClientExpiration) <> "\n")
-                <> ("check_interval: " <> tshow (checkInterval defaultInactiveClientExpiration))
-                <> "\n\n\
-                   \[WEB]\n\
-                   \# Set path to generate static mini-site for server information and qr codes/links\n"
-                <> ("static_path: " <> T.pack (fromMaybe defaultStaticPath webStaticPath) <> "\n\n")
-                <> "# Run an embedded server on this port\n\
-                   \# Onion sites can use any port and register it in the hidden service config.\n\
-                   \# Running on a port 80 may require setting process capabilities.\n\
-                   \# http: 8000\n\n\
-                   \# You can run an embedded TLS web server too if you provide port and cert and key files.\n\
-                   \# Not required for running relay on onion address.\n"
-                <> (webDisabled <> "https: 443\n")
-                <> (webDisabled <> "cert: " <> T.pack httpsCertFile <> "\n")
-                <> (webDisabled <> "key: " <> T.pack httpsKeyFile <> "\n")
-              where
-                webDisabled = if disableWeb then "# " else ""
     runServer startOptions ini = do
       hSetBuffering stdout LineBuffering
       hSetBuffering stderr LineBuffering
       fp <- checkSavedFingerprint cfgPath defaultX509Config
       let host = either (const "<hostnames>") T.unpack $ lookupValue "TRANSPORT" "host" ini
           port = T.unpack $ strictIni "TRANSPORT" "port" ini
-          cfg@ServerConfig {information, storeLogFile, msgStoreType, newQueueBasicAuth, messageExpiration, inactiveClientExpiration} = serverConfig
+          cfg@ServerConfig {information, serverStoreCfg, newQueueBasicAuth, messageExpiration, inactiveClientExpiration} = serverConfig
           sourceCode' = (\ServerPublicInfo {sourceCode} -> sourceCode) <$> information
           srv = ProtoServerWithAuth (SMPServer [THDomainName host] (if port == "5223" then "" else port) (C.KeyHash fp)) newQueueBasicAuth
       printServiceInfo serverVersion srv
       printSourceCode sourceCode'
-      printServerConfig transports storeLogFile
-      checkMsgStoreMode msgStoreType
+      printSMPServerConfig transports serverStoreCfg
+      checkMsgStoreMode ini iniStoreType
       putStrLn $ case messageExpiration of
         Just ExpirationConfig {ttl} -> "expiring messages after " <> showTTL ttl
         _ -> "not expiring messages"
@@ -347,10 +364,10 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
             then maybe "allowed" (const "requires password") newQueueBasicAuth
             else "NOT allowed"
       -- print information
-      let persistence
-            | isNothing storeLogFile = SPMMemoryOnly
-            | isJust (storeMsgsFile cfg) = SPMMessages
-            | otherwise = SPMQueues
+      let persistence = case serverStoreCfg of
+            ASSCfg _ _ (SSCMemory Nothing) -> SPMMemoryOnly
+            ASSCfg _ _ (SSCMemory (Just StorePaths {storeMsgsFile})) | isNothing storeMsgsFile -> SPMQueues
+            _ -> SPMMessages
       let config =
             ServerPublicConfig
               { persistence,
@@ -373,23 +390,21 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
           runSMPServer cfg Nothing
       logDebug "Bye"
       where
-        enableStoreLog = settingIsOn "STORE_LOG" "enable" ini
         logStats = settingIsOn "STORE_LOG" "log_stats" ini
         c = combine cfgPath . ($ defaultX509Config)
         restoreMessagesFile path = case iniOnOff "STORE_LOG" "restore_messages" ini of
           Just True -> Just path
           Just False -> Nothing
           -- if the setting is not set, it is enabled when store log is enabled
-          _ -> enableStoreLog $> path
+          _ -> enableStoreLog' ini $> path
         transports = iniTransports ini
         sharedHTTP = any (\(_, _, addHTTP) -> addHTTP) transports
-        iniMsgStoreType = either error id $! readMsgStoreType ini
+        iniStoreType = either error id $! readStoreType ini
         serverConfig =
           ServerConfig
             { transports,
               smpHandshakeTimeout = 120000000,
               tbqSize = 128,
-              msgStoreType = iniMsgStoreType,
               msgQueueQuota = defaultMsgQueueQuota,
               maxJournalMsgCount = defaultMaxJournalMsgCount,
               maxJournalStateLines = defaultMaxJournalStateLines,
@@ -402,10 +417,15 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
                     certificateFile = c serverCrtFile
                   },
               httpCredentials = (\WebHttpsParams {key, cert} -> ServerCredentials {caCertificateFile = Nothing, privateKeyFile = key, certificateFile = cert}) <$> webHttpsParams',
-              storeLogFile = enableStoreLog $> storeLogFilePath,
-              storeMsgsFile = case iniMsgStoreType of
-                AMSType SMSMemory -> restoreMessagesFile storeMsgsFilePath
-                AMSType SMSJournal -> Just storeMsgsJournalDir,
+              serverStoreCfg = case iniStoreType of
+                ASType SQSMemory SMSMemory ->
+                  ASSCfg SQSMemory SMSMemory $ SSCMemory $ enableStoreLog' ini $> StorePaths {storeLogFile = storeLogFilePath, storeMsgsFile = restoreMessagesFile storeMsgsFilePath}
+                ASType SQSMemory SMSJournal ->
+                  ASSCfg SQSMemory SMSJournal $ SSCMemoryJournal {storeLogFile = storeLogFilePath, storeMsgsPath = storeMsgsJournalDir}
+                ASType SQSPostgres SMSJournal ->
+                  let dbStoreLogPath = enableDbStoreLog' ini $> storeLogFilePath
+                      storeCfg = PostgresStoreCfg {dbOpts = iniDBOptions ini, dbStoreLogPath, confirmMigrations = MCYesUp, deletedTTL = iniDeletedTTL ini}
+                   in ASSCfg SQSPostgres SMSJournal $ SSCDatabaseJournal {storeCfg, storeMsgsPath' = storeMsgsJournalDir},
               storeNtfsFile = restoreMessagesFile storeNtfsFilePath,
               -- allow creating new queues by default
               allowNewQueues = fromMaybe True $ iniOnOff "AUTH" "new_queues" ini,
@@ -486,31 +506,69 @@ smpServerCLI_ generateSite serveStaticFiles attachStaticFiles cfgPath logPath =
             pure WebHttpsParams {port, cert, key}
         webStaticPath' = eitherToMaybe $ T.unpack <$> lookupValue "WEB" "static_path" ini
 
-    checkMsgStoreMode :: AMSType -> IO ()
-    checkMsgStoreMode mode = do
+    checkMsgStoreMode :: Ini -> AStoreType -> IO ()
+    checkMsgStoreMode ini mode = do
       msgsDirExists <- doesDirectoryExist storeMsgsJournalDir
       msgsFileExists <- doesFileExist storeMsgsFilePath
+      storeLogExists <- doesFileExist storeLogFilePath
       case mode of
-        _ | msgsFileExists && msgsDirExists -> exitConfigureMsgStorage
-        AMSType SMSJournal
+        ASType qs SMSJournal
+          | msgsFileExists && msgsDirExists -> exitConfigureMsgStorage
           | msgsFileExists -> do
               putStrLn $ "Error: store_messages is `journal` with " <> storeMsgsFilePath <> " file present."
               putStrLn "Set store_messages to `memory` or use `smp-server journal export` to migrate."
               exitFailure
           | not msgsDirExists ->
               putStrLn $ "store_messages is `journal`, " <> storeMsgsJournalDir <> " directory will be created."
-        AMSType SMSMemory
+          | otherwise -> case qs of
+              SQSMemory ->
+                unless (storeLogExists) $ putStrLn $ "store_queues is `memory`, " <> storeLogFilePath <> " file will be created."
+#if defined(dbServerPostgres)
+              SQSPostgres -> do
+                let DBOpts {connstr, schema} = iniDBOptions ini
+                schemaExists <- checkSchemaExists connstr schema
+                case enableDbStoreLog' ini of
+                  Just ()
+                    | not schemaExists -> noDatabaseSchema connstr schema
+                    | not storeLogExists -> do
+                        putStrLn $ "Error: db_store_log is `on`, " <> storeLogFilePath <> " does not exist"
+                        exitFailure
+                    | otherwise -> pure ()
+                  Nothing
+                    | storeLogExists && schemaExists -> exitConfigureQueueStore connstr schema
+                    | storeLogExists -> do
+                        putStrLn $ "Error: store_queues is `database` with " <> storeLogFilePath <> " file present."
+                        putStrLn "Set store_queues to `memory` or use `smp-server database import` to migrate."
+                        exitFailure
+                    | not schemaExists -> noDatabaseSchema connstr schema
+                    | otherwise -> pure ()
+                where
+                  noDatabaseSchema connstr schema = do
+                    putStrLn $ "Error: store_queues is `database`, create schema " <> B.unpack schema <> " in PostgreSQL database " <> B.unpack connstr
+                    exitFailure
+#else
+              SQSPostgres -> noPostgresExit
+#endif
+        ASType SQSMemory SMSMemory
+          | msgsFileExists && msgsDirExists -> exitConfigureMsgStorage
           | msgsDirExists -> do
               putStrLn $ "Error: store_messages is `memory` with " <> storeMsgsJournalDir <> " directory present."
               putStrLn "Set store_messages to `journal` or use `smp-server journal import` to migrate."
               exitFailure
-        _ -> pure ()
+          | otherwise -> pure ()
 
     exitConfigureMsgStorage = do
       putStrLn $ "Error: both " <> storeMsgsFilePath <> " file and " <> storeMsgsJournalDir <> " directory are present."
       putStrLn "Configure memory storage."
       exitFailure
 
+#if defined(dbServerPostgres)
+    exitConfigureQueueStore connstr schema = do
+      putStrLn $ "Error: both " <> storeLogFilePath <> " file and " <> B.unpack schema <> " schema are present (database: " <> B.unpack connstr <> ")."
+      putStrLn "Configure queue storage."
+      exitFailure
+#endif
+
 data EmbeddedWebParams = EmbeddedWebParams
   { webStaticPath :: FilePath,
     webHttpPort :: Maybe Int,
@@ -533,59 +591,6 @@ getServerSourceCode =
 simplexmqSource :: String
 simplexmqSource = "https://github.com/simplex-chat/simplexmq"
 
-defaultControlPort :: Int
-defaultControlPort = 5224
-
-informationIniContent :: InitOptions -> Text
-informationIniContent InitOptions {sourceCode, serverInfo} =
-  "[INFORMATION]\n\
-  \# AGPLv3 license requires that you make any source code modifications\n\
-  \# available to the end users of the server.\n\
-  \# LICENSE: https://github.com/simplex-chat/simplexmq/blob/stable/LICENSE\n\
-  \# Include correct source code URI in case the server source code is modified in any way.\n\
-  \# If any other information fields are present, source code property also MUST be present.\n\n"
-    <> (optDisabled sourceCode <> "source_code: " <> fromMaybe "URI" sourceCode)
-    <> "\n\n\
-       \# Declaring all below information is optional, any of these fields can be omitted.\n\
-       \\n\
-       \# Server usage conditions and amendments.\n\
-       \# It is recommended to use standard conditions with any amendments in a separate document.\n\
-       \# usage_conditions: https://github.com/simplex-chat/simplex-chat/blob/stable/PRIVACY.md\n\
-       \# condition_amendments: link\n\
-       \\n\
-       \# Server location and operator.\n"
-    <> countryStr "server" serverCountry
-    <> enitiyStrs "operator" operator
-    <> (optDisabled website <> "website: " <> fromMaybe "" website)
-    <> "\n\n\
-       \# Administrative contacts.\n\
-       \# admin_simplex: SimpleX address\n\
-       \# admin_email:\n\
-       \# admin_pgp:\n\
-       \# admin_pgp_fingerprint:\n\
-       \\n\
-       \# Contacts for complaints and feedback.\n\
-       \# complaints_simplex: SimpleX address\n\
-       \# complaints_email:\n\
-       \# complaints_pgp:\n\
-       \# complaints_pgp_fingerprint:\n\
-       \\n\
-       \# Hosting provider.\n"
-    <> enitiyStrs "hosting" hosting
-    <> "\n\
-       \# Hosting type can be `virtual`, `dedicated`, `colocation`, `owned`\n"
-    <> ("hosting_type: " <> maybe "virtual" (decodeLatin1 . strEncode) hostingType <> "\n\n")
-  where
-    ServerPublicInfo {operator, website, hosting, hostingType, serverCountry} = serverInfo
-    countryStr optName country = optDisabled country <> optName <> "_country: " <> fromMaybe "ISO-3166 2-letter code" country <> "\n"
-    enitiyStrs optName entity =
-      optDisabled entity
-        <> optName
-        <> ": "
-        <> maybe "entity (organization or person name)" name entity
-        <> "\n"
-        <> countryStr optName (country =<< entity)
-
 serverPublicInfo :: Ini -> Maybe ServerPublicInfo
 serverPublicInfo ini = serverInfo <$!> infoValue "source_code"
   where
@@ -618,9 +623,6 @@ serverPublicInfo ini = serverInfo <$!> infoValue "source_code"
             (Nothing, Nothing, _, Nothing) -> Nothing
             (_, _, pkURI, pkFingerprint) -> Just ServerContactAddress {simplex, email, pgp = PGPKey <$> pkURI <*> pkFingerprint}
 
-optDisabled :: Maybe a -> Text
-optDisabled p = if isNothing p then "# " else ""
-
 validCountryValue :: String -> String -> Either String Text
 validCountryValue field s
   | length s == 2 && all (\c -> isAscii c && isAlpha c) s = Right $ T.pack $ map toUpper s
@@ -638,32 +640,10 @@ data CliCommand
   | OnlineCert CertOptions
   | Start StartOptions
   | Delete
-  | Journal JournalCmd
+  | Journal StoreCmd
+  | Database StoreCmd DBOpts
 
-data JournalCmd = JCImport | JCExport | JCDelete
-
-data InitOptions = InitOptions
-  { enableStoreLog :: Bool,
-    logStats :: Bool,
-    signAlgorithm :: SignAlgorithm,
-    ip :: HostName,
-    fqdn :: Maybe HostName,
-    password :: Maybe ServerPassword,
-    controlPort :: Maybe Int,
-    socksProxy :: Maybe SocksProxy,
-    ownDomains :: Maybe (L.NonEmpty TransportHost),
-    sourceCode :: Maybe Text,
-    serverInfo :: ServerPublicInfo,
-    operatorCountry :: Maybe Text,
-    hostingCountry :: Maybe Text,
-    webStaticPath :: Maybe FilePath,
-    disableWeb :: Bool,
-    scripted :: Bool
-  }
-  deriving (Show)
-
-data ServerPassword = ServerPassword BasicAuth | SPRandom
-  deriving (Show)
+data StoreCmd = SCImport | SCExport | SCDelete
 
 cliCommandP :: FilePath -> FilePath -> FilePath -> Parser CliCommand
 cliCommandP cfgPath logPath iniFile =
@@ -673,6 +653,7 @@ cliCommandP cfgPath logPath iniFile =
         <> command "start" (info (Start <$> startOptionsP) (progDesc $ "Start server (configuration: " <> iniFile <> ")"))
         <> command "delete" (info (pure Delete) (progDesc "Delete configuration and log files"))
         <> command "journal" (info (Journal <$> journalCmdP) (progDesc "Import/export messages to/from journal storage"))
+        <> command "database" (info (Database <$> databaseCmdP <*> dbOptsP) (progDesc "Import/export queues to/from PostgreSQL database storage"))
     )
   where
     initP :: Parser InitOptions
@@ -683,6 +664,7 @@ cliCommandP cfgPath logPath iniFile =
               <> short 'l'
               <> help "Enable store log for persistence"
           )
+      dbOptions <- dbOptsP
       logStats <-
         switch
           ( long "daily-stats"
@@ -785,6 +767,7 @@ cliCommandP cfgPath logPath iniFile =
       pure
         InitOptions
           { enableStoreLog,
+            dbOptions,
             logStats,
             signAlgorithm,
             ip,
@@ -816,21 +799,69 @@ cliCommandP cfgPath logPath iniFile =
       maintenance <-
         switch
           ( long "maintenance"
+              <> short 'm'
               <> help "Do not start the server, only perform start and stop tasks"
           )
+      compactLog <-
+        switch
+          ( long "compact-log"
+              <> help "Compact store log (always enabled with `memory` storage for queues)"
+          )
       skipWarnings <-
         switch
           ( long "skip-warnings"
               <> help "Start the server with non-critical start warnings"
           )
-      pure StartOptions {maintenance, skipWarnings}
-    journalCmdP =
+      confirmMigrations <-
+        option
+          parseConfirmMigrations
+          ( long "confirm-migrations"
+              <> metavar "CONFIRM_MIGRATIONS"
+              <> help "Confirm PostgreSQL database migration: up, down (default is manual confirmation)"
+              <> value MCConsole
+          )
+      pure StartOptions {maintenance, compactLog, skipWarnings, confirmMigrations}
+    journalCmdP = storeCmdP "message log file" "journal storage"
+    databaseCmdP = storeCmdP "queue store log file" "PostgreSQL database schema"
+    storeCmdP src dest =
       hsubparser
-        ( command "import" (info (pure JCImport) (progDesc "Import message log file into a new journal storage"))
-            <> command "export" (info (pure JCExport) (progDesc "Export journal storage to message log file"))
-            <> command "delete" (info (pure JCDelete) (progDesc "Delete journal storage"))
+        ( command "import" (info (pure SCImport) (progDesc $ "Import " <> src <> " into a new " <> dest))
+            <> command "export" (info (pure SCExport) (progDesc $ "Export " <> dest <> " to " <> src))
+            <> command "delete" (info (pure SCDelete) (progDesc $ "Delete " <> dest))
         )
-
+    dbOptsP = do
+      connstr <-
+        strOption
+          ( long "database"
+              <> short 'd'
+              <> metavar "DB_CONN"
+              <> help "Database connection string"
+              <> value defaultDBConnStr
+              <> showDefault
+          )
+      schema <-
+        strOption
+          ( long "schema"
+              <> metavar "DB_SCHEMA"
+              <> help "Database schema"
+              <> value defaultDBSchema
+              <> showDefault
+          )
+      poolSize <-
+        option
+          auto
+          ( long "pool-size"
+              <> metavar "POOL_SIZE"
+              <> help "Database pool size"
+              <> value defaultDBPoolSize
+              <> showDefault
+          )
+      pure DBOpts {connstr, schema, poolSize, createSchema = False}
+    parseConfirmMigrations :: ReadM MigrationConfirmation
+    parseConfirmMigrations = eitherReader $ \case
+      "up" -> Right MCYesUp
+      "down" -> Right MCYesUpDown
+      _ -> Left "invalid migration confirmation, pass 'up' or 'down'"
     parseBasicAuth :: ReadM ServerPassword
     parseBasicAuth = eitherReader $ fmap ServerPassword . strDecode . B.pack
     entityP :: String -> String -> String -> Parser (Maybe Entity, Maybe Text)
diff --git a/src/Simplex/Messaging/Server/Main/Init.hs b/src/Simplex/Messaging/Server/Main/Init.hs
new file mode 100644
index 000000000..4c218c5cc
--- /dev/null
+++ b/src/Simplex/Messaging/Server/Main/Init.hs
@@ -0,0 +1,230 @@
+{-# LANGUAGE DuplicateRecordFields #-}
+{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE OverloadedStrings #-}
+
+module Simplex.Messaging.Server.Main.Init where
+
+import Data.ByteString.Char8 (ByteString)
+import Data.Int (Int64)
+import qualified Data.List.NonEmpty as L
+import Data.Maybe (fromMaybe, isNothing)
+import Numeric.Natural (Natural)
+import Data.Text (Text)
+import qualified Data.Text as T
+import Data.Text.Encoding (decodeLatin1)
+import Network.Socket (HostName)
+import Simplex.Messaging.Agent.Store.Postgres.Options (DBOpts (..))
+import Simplex.Messaging.Encoding.String
+import Simplex.Messaging.Protocol (BasicAuth)
+import Simplex.Messaging.Server.CLI (SignAlgorithm, onOff)
+import Simplex.Messaging.Server.Env.STM
+import Simplex.Messaging.Server.Expiration (ExpirationConfig (..))
+import Simplex.Messaging.Server.Information (Entity (..), ServerPublicInfo (..))
+import Simplex.Messaging.Transport.Client (SocksProxy, TransportHost)
+import Simplex.Messaging.Util (safeDecodeUtf8, tshow)
+import System.FilePath ((</>))
+
+defaultControlPort :: Int
+defaultControlPort = 5224
+
+defaultDBConnStr :: ByteString
+defaultDBConnStr = "postgresql://smp@/smp_server_store"
+
+defaultDBSchema :: ByteString
+defaultDBSchema = "smp_server"
+
+defaultDBPoolSize :: Natural
+defaultDBPoolSize = 10
+
+-- time to retain deleted queues in the database (days), for debugging
+defaultDeletedTTL :: Int64
+defaultDeletedTTL = 21
+
+data InitOptions = InitOptions
+  { enableStoreLog :: Bool,
+    dbOptions :: DBOpts,
+    logStats :: Bool,
+    signAlgorithm :: SignAlgorithm,
+    ip :: HostName,
+    fqdn :: Maybe HostName,
+    password :: Maybe ServerPassword,
+    controlPort :: Maybe Int,
+    socksProxy :: Maybe SocksProxy,
+    ownDomains :: Maybe (L.NonEmpty TransportHost),
+    sourceCode :: Maybe Text,
+    serverInfo :: ServerPublicInfo,
+    operatorCountry :: Maybe Text,
+    hostingCountry :: Maybe Text,
+    webStaticPath :: Maybe FilePath,
+    disableWeb :: Bool,
+    scripted :: Bool
+  }
+  deriving (Show)
+
+data ServerPassword = ServerPassword BasicAuth | SPRandom
+  deriving (Show)
+
+iniFileContent :: FilePath -> FilePath -> InitOptions -> HostName -> Maybe BasicAuth -> Maybe (Text, Text) -> Text
+iniFileContent cfgPath logPath opts host basicAuth controlPortPwds =
+  informationIniContent opts
+    <> "[STORE_LOG]\n\
+        \# The server uses memory or PostgreSQL database for persisting queue records.\n\
+        \# Use `enable: on` to use append-only log to preserve and restore queue records on restart.\n\
+        \# Log is compacted on start (deleted objects are removed).\n"
+    <> ("enable: " <> onOff enableStoreLog <> "\n\n")
+    <> "# Queue storage mode: `memory` or `database` (to store queue records in PostgreSQL database).\n\
+        \# `memory` - in-memory persistence, with optional append-only log (`enable: on`).\n\
+        \# `database`- PostgreSQL databass (requires `store_messages: journal`).\n\
+        \store_queues: memory\n\n\
+        \# Database connection settings for PostgreSQL database (`store_queues: database`).\n"
+    <> (optDisabled' (connstr == defaultDBConnStr) <> "db_connection: " <> safeDecodeUtf8 connstr <> "\n")
+    <> (optDisabled' (schema == defaultDBSchema) <> "db_schema: " <> safeDecodeUtf8 schema <> "\n")
+    <> (optDisabled' (poolSize == defaultDBPoolSize) <> "db_pool_size: " <> tshow poolSize <> "\n\n")
+    <> "# Write database changes to store log file\n\
+        \# db_store_log: off\n\n\
+        \# Time to retain deleted queues in the database, days.\n"
+    <> ("db_deleted_ttl: " <> tshow defaultDeletedTTL <> "\n\n")
+    <> "# Message storage mode: `memory` or `journal`.\n\
+        \store_messages: memory\n\n\
+        \# When store_messages is `memory`, undelivered messages are optionally saved and restored\n\
+        \# when the server restarts, they are preserved in the .bak file until the next restart.\n"
+    <> ("restore_messages: " <> onOff enableStoreLog <> "\n\n")
+    <> "# Messages and notifications expiration periods.\n"
+    <> ("expire_messages_days: " <> tshow defMsgExpirationDays <> "\n")
+    <> "expire_messages_on_start: on\n"
+    <> ("expire_ntfs_hours: " <> tshow defNtfExpirationHours <> "\n\n")
+    <> "# Log daily server statistics to CSV file\n"
+    <> ("log_stats: " <> onOff logStats <> "\n\n")
+    <> "# Log interval for real-time Prometheus metrics\n\
+        \# prometheus_interval: 300\n\n\
+        \[AUTH]\n\
+        \# Set new_queues option to off to completely prohibit creating new messaging queues.\n\
+        \# This can be useful when you want to decommission the server, but not all connections are switched yet.\n\
+        \new_queues: on\n\n\
+        \# Use create_password option to enable basic auth to create new messaging queues.\n\
+        \# The password should be used as part of server address in client configuration:\n\
+        \# smp://fingerprint:password@host1,host2\n\
+        \# The password will not be shared with the connecting contacts, you must share it only\n\
+        \# with the users who you want to allow creating messaging queues on your server.\n"
+    <> ( let noPassword = "password to create new queues and forward messages (any printable ASCII characters without whitespace, '@', ':' and '/')"
+          in optDisabled basicAuth <> "create_password: " <> maybe noPassword (safeDecodeUtf8 . strEncode) basicAuth
+        )
+    <> "\n\n"
+    <> (optDisabled controlPortPwds <> "control_port_admin_password: " <> maybe "" fst controlPortPwds <> "\n")
+    <> (optDisabled controlPortPwds <> "control_port_user_password: " <> maybe "" snd controlPortPwds <> "\n")
+    <> "\n\
+        \[TRANSPORT]\n\
+        \# Host is only used to print server address on start.\n\
+        \# You can specify multiple server ports.\n"
+    <> ("host: " <> T.pack host <> "\n")
+    <> ("port: " <> defaultServerPorts <> "\n")
+    <> "log_tls_errors: off\n\n\
+        \# Use `websockets: 443` to run websockets server in addition to plain TLS.\n\
+        \# This option is deprecated and should be used for testing only.\n\
+        \# , port 443 should be specified in port above\n\
+        \websockets: off\n"
+    <> (optDisabled controlPort <> "control_port: " <> tshow (fromMaybe defaultControlPort controlPort))
+    <> "\n\n\
+        \[PROXY]\n\
+        \# Network configuration for SMP proxy client.\n\
+        \# `host_mode` can be 'public' (default) or 'onion'.\n\
+        \# It defines prefferred hostname for destination servers with multiple hostnames.\n\
+        \# host_mode: public\n\
+        \# required_host_mode: off\n\n\
+        \# The domain suffixes of the relays you operate (space-separated) to count as separate proxy statistics.\n"
+    <> (optDisabled ownDomains <> "own_server_domains: " <> maybe "" (safeDecodeUtf8 . strEncode) ownDomains)
+    <> "\n\n\
+        \# SOCKS proxy port for forwarding messages to destination servers.\n\
+        \# You may need a separate instance of SOCKS proxy for incoming single-hop requests.\n"
+    <> (optDisabled socksProxy <> "socks_proxy: " <> maybe "localhost:9050" (safeDecodeUtf8 . strEncode) socksProxy)
+    <> "\n\n\
+        \# `socks_mode` can be 'onion' for SOCKS proxy to be used for .onion destination hosts only (default)\n\
+        \# or 'always' to be used for all destination hosts (can be used if it is an .onion server).\n\
+        \# socks_mode: onion\n\n\
+        \# Limit number of threads a client can spawn to process proxy commands in parrallel.\n"
+    <> ("# client_concurrency: " <> tshow defaultProxyClientConcurrency)
+    <> "\n\n\
+        \[INACTIVE_CLIENTS]\n\
+        \# TTL and interval to check inactive clients\n\
+        \disconnect: on\n"
+    <> ("ttl: " <> tshow (ttl defaultInactiveClientExpiration) <> "\n")
+    <> ("check_interval: " <> tshow (checkInterval defaultInactiveClientExpiration))
+    <> "\n\n\
+        \[WEB]\n\
+        \# Set path to generate static mini-site for server information and qr codes/links\n"
+    <> ("static_path: " <> T.pack (fromMaybe defaultStaticPath webStaticPath) <> "\n\n")
+    <> "# Run an embedded server on this port\n\
+        \# Onion sites can use any port and register it in the hidden service config.\n\
+        \# Running on a port 80 may require setting process capabilities.\n\
+        \# http: 8000\n\n\
+        \# You can run an embedded TLS web server too if you provide port and cert and key files.\n\
+        \# Not required for running relay on onion address.\n"
+    <> (webDisabled <> "https: 443\n")
+    <> (webDisabled <> "cert: " <> T.pack httpsCertFile <> "\n")
+    <> (webDisabled <> "key: " <> T.pack httpsKeyFile <> "\n")
+  where
+    InitOptions {enableStoreLog, dbOptions, socksProxy, ownDomains, controlPort, webStaticPath, disableWeb, logStats} = opts
+    DBOpts {connstr, schema, poolSize} = dbOptions
+    defaultServerPorts = "5223,443"
+    defaultStaticPath = logPath </> "www"
+    httpsCertFile = cfgPath </> "web.crt"
+    httpsKeyFile = cfgPath </> "web.key"
+    webDisabled = if disableWeb then "# " else ""
+
+informationIniContent :: InitOptions -> Text
+informationIniContent InitOptions {sourceCode, serverInfo} =
+  "[INFORMATION]\n\
+  \# AGPLv3 license requires that you make any source code modifications\n\
+  \# available to the end users of the server.\n\
+  \# LICENSE: https://github.com/simplex-chat/simplexmq/blob/stable/LICENSE\n\
+  \# Include correct source code URI in case the server source code is modified in any way.\n\
+  \# If any other information fields are present, source code property also MUST be present.\n\n"
+    <> (optDisabled sourceCode <> "source_code: " <> fromMaybe "URI" sourceCode)
+    <> "\n\n\
+       \# Declaring all below information is optional, any of these fields can be omitted.\n\
+       \\n\
+       \# Server usage conditions and amendments.\n\
+       \# It is recommended to use standard conditions with any amendments in a separate document.\n\
+       \# usage_conditions: https://github.com/simplex-chat/simplex-chat/blob/stable/PRIVACY.md\n\
+       \# condition_amendments: link\n\
+       \\n\
+       \# Server location and operator.\n"
+    <> countryStr "server" serverCountry
+    <> enitiyStrs "operator" operator
+    <> (optDisabled website <> "website: " <> fromMaybe "" website)
+    <> "\n\n\
+       \# Administrative contacts.\n\
+       \# admin_simplex: SimpleX address\n\
+       \# admin_email:\n\
+       \# admin_pgp:\n\
+       \# admin_pgp_fingerprint:\n\
+       \\n\
+       \# Contacts for complaints and feedback.\n\
+       \# complaints_simplex: SimpleX address\n\
+       \# complaints_email:\n\
+       \# complaints_pgp:\n\
+       \# complaints_pgp_fingerprint:\n\
+       \\n\
+       \# Hosting provider.\n"
+    <> enitiyStrs "hosting" hosting
+    <> "\n\
+       \# Hosting type can be `virtual`, `dedicated`, `colocation`, `owned`\n"
+    <> ("hosting_type: " <> maybe "virtual" (decodeLatin1 . strEncode) hostingType <> "\n\n")
+  where
+    ServerPublicInfo {operator, website, hosting, hostingType, serverCountry} = serverInfo
+    countryStr optName country = optDisabled country <> optName <> "_country: " <> fromMaybe "ISO-3166 2-letter code" country <> "\n"
+    enitiyStrs optName entity =
+      optDisabled entity
+        <> optName
+        <> ": "
+        <> maybe "entity (organization or person name)" name entity
+        <> "\n"
+        <> countryStr optName (country =<< entity)
+
+optDisabled :: Maybe a -> Text
+optDisabled = optDisabled' . isNothing
+{-# INLINE optDisabled #-}
+
+optDisabled' :: Bool -> Text
+optDisabled' cond = if cond then "# " else ""
+{-# INLINE optDisabled' #-}
diff --git a/src/Simplex/Messaging/Server/MsgStore/Journal.hs b/src/Simplex/Messaging/Server/MsgStore/Journal.hs
index 4498677af..0382089a8 100644
--- a/src/Simplex/Messaging/Server/MsgStore/Journal.hs
+++ b/src/Simplex/Messaging/Server/MsgStore/Journal.hs
@@ -1,21 +1,29 @@
 {-# LANGUAGE BangPatterns #-}
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE DerivingStrategies #-}
 {-# LANGUAGE DuplicateRecordFields #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE InstanceSigs #-}
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE MultiWayIf #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE NamedFieldPuns #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE StandaloneDeriving #-}
+{-# LANGUAGE TypeApplications #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE TupleSections #-}
 
 module Simplex.Messaging.Server.MsgStore.Journal
-  ( JournalMsgStore (queueStore, random, expireBackupsBefore),
+  ( JournalMsgStore (random, expireBackupsBefore),
+    QStore (..),
+    QStoreCfg (..),
     JournalQueue,
     JournalMsgQueue (queue, state),
     JMQueue (queueDirectory, statePath),
@@ -35,6 +43,10 @@ module Simplex.Messaging.Server.MsgStore.Journal
     queueLogFileName,
     journalFilePath,
     logFileExt,
+    stmQueueStore,
+#if defined(dbServerPostgres)
+    postgresQueueStore,
+#endif
   )
 where
 
@@ -46,45 +58,81 @@ import Control.Monad.Trans.Except
 import qualified Data.Attoparsec.ByteString.Char8 as A
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
+import Data.Either (fromRight)
 import Data.Functor (($>))
 import Data.Int (Int64)
 import Data.List (intercalate, sort)
-import Data.Maybe (catMaybes, fromMaybe, isNothing, mapMaybe)
+import Data.Maybe (fromMaybe, isNothing, mapMaybe)
 import Data.Text (Text)
 import qualified Data.Text as T
 import Data.Time.Clock (NominalDiffTime, UTCTime, addUTCTime, getCurrentTime)
 import Data.Time.Clock.System (SystemTime (..), getSystemTime)
 import Data.Time.Format.ISO8601 (iso8601Show, iso8601ParseM)
 import GHC.IO (catchAny)
-import Simplex.Messaging.Agent.Client (getMapLock, withLockMap)
+import Simplex.Messaging.Agent.Client (getMapLock)
 import Simplex.Messaging.Agent.Lock
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Protocol
+import Simplex.Messaging.Server.MsgStore.Journal.SharedLock
 import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.QueueStore
+#if defined(dbServerPostgres)
+import Simplex.Messaging.Server.QueueStore.Postgres
+#endif
 import Simplex.Messaging.Server.QueueStore.STM
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.TMap (TMap)
 import qualified Simplex.Messaging.TMap as TM
-import Simplex.Messaging.Server.StoreLog
 import Simplex.Messaging.Util (ifM, tshow, whenM, ($>>=), (<$$>))
 import System.Directory
-import System.Exit
 import System.FilePath (takeFileName, (</>))
-import System.IO (BufferMode (..), Handle, IOMode (..), SeekMode (..), stdout)
+import System.IO (BufferMode (..), Handle, IOMode (..), SeekMode (..))
 import qualified System.IO as IO
 import System.Random (StdGen, genByteString, newStdGen)
 
-data JournalMsgStore = JournalMsgStore
-  { config :: JournalStoreConfig,
+data JournalMsgStore s = JournalMsgStore
+  { config :: JournalStoreConfig s,
     random :: TVar StdGen,
     queueLocks :: TMap RecipientId Lock,
-    queueStore :: STMQueueStore JournalQueue,
+    sharedLock :: TMVar RecipientId,
+    queueStore_ :: QStore s,
     expireBackupsBefore :: UTCTime
   }
 
-data JournalStoreConfig = JournalStoreConfig
+data QStore (s :: QSType) where
+  MQStore :: QStoreType 'QSMemory -> QStore 'QSMemory
+#if defined(dbServerPostgres)
+  PQStore :: QStoreType 'QSPostgres -> QStore 'QSPostgres
+#endif
+
+type family QStoreType s where
+  QStoreType 'QSMemory = STMQueueStore (JournalQueue 'QSMemory)
+#if defined(dbServerPostgres)
+  QStoreType 'QSPostgres = PostgresQueueStore (JournalQueue 'QSPostgres)
+#endif
+
+withQS :: (QueueStoreClass (JournalQueue s) (QStoreType s) => QStoreType s -> r) -> QStore s -> r
+withQS f = \case
+  MQStore st -> f st
+#if defined(dbServerPostgres)
+  PQStore st -> f st
+#endif
+{-# INLINE withQS #-}
+
+stmQueueStore :: JournalMsgStore 'QSMemory -> STMQueueStore (JournalQueue 'QSMemory)
+stmQueueStore st = case queueStore_ st of
+  MQStore st' -> st'
+
+#if defined(dbServerPostgres)
+postgresQueueStore :: JournalMsgStore 'QSPostgres -> PostgresQueueStore (JournalQueue 'QSPostgres)
+postgresQueueStore st = case queueStore_ st of
+  PQStore st' -> st'
+#endif
+
+data JournalStoreConfig s = JournalStoreConfig
   { storePath :: FilePath,
     pathParts :: Int,
+    queueStoreCfg :: QStoreCfg s,
     quota :: Int,
     -- Max number of messages per journal file - ignored in STM store.
     -- When this limit is reached, the file will be changed.
@@ -99,13 +147,20 @@ data JournalStoreConfig = JournalStoreConfig
     keepMinBackups :: Int
   }
 
-data JournalQueue = JournalQueue
-  { recipientId :: RecipientId,
+data QStoreCfg s where
+  MQStoreCfg :: QStoreCfg 'QSMemory
+#if defined(dbServerPostgres)
+  PQStoreCfg :: PostgresStoreCfg -> QStoreCfg 'QSPostgres
+#endif
+
+data JournalQueue (s :: QSType) = JournalQueue
+  { recipientId' :: RecipientId,
     queueLock :: Lock,
+    sharedLock :: TMVar RecipientId,
     -- To avoid race conditions and errors when restoring queues,
     -- Nothing is written to TVar when queue is deleted.
-    queueRec :: TVar (Maybe QueueRec),
-    msgQueue_ :: TVar (Maybe JournalMsgQueue),
+    queueRec' :: TVar (Maybe QueueRec),
+    msgQueue' :: TVar (Maybe (JournalMsgQueue s)),
     -- system time in seconds since epoch
     activeAt :: TVar Int64,
     queueState :: TVar (Maybe QState) -- Nothing - unknown
@@ -121,7 +176,7 @@ data JMQueue = JMQueue
     statePath :: FilePath
   }
 
-data JournalMsgQueue = JournalMsgQueue
+data JournalMsgQueue (s :: QSType) = JournalMsgQueue
   { queue :: JMQueue,
     state :: TVar MsgQueueState,
     -- tipMsg contains last message and length incl. newline
@@ -228,131 +283,185 @@ msgLogFileName = "messages"
 logFileExt :: String
 logFileExt = ".log"
 
-newtype StoreIO a = StoreIO {unStoreIO :: IO a}
+newtype StoreIO (s :: QSType) a = StoreIO {unStoreIO :: IO a}
   deriving newtype (Functor, Applicative, Monad)
 
-instance STMStoreClass JournalMsgStore where
-  stmQueueStore JournalMsgStore {queueStore} = queueStore
-  mkQueue st rId qr = do
-    queueLock <- getMapLock (queueLocks st) rId
-    queueRec <- newTVar $ Just qr
-    msgQueue_ <- newTVar Nothing
-    activeAt <- newTVar 0
-    queueState <- newTVar Nothing
-    pure $
-      JournalQueue
-        { recipientId = rId,
-          queueLock,
-          queueRec,
-          msgQueue_,
-          activeAt,
-          queueState
-        }
-  msgQueue_' = msgQueue_
+instance StoreQueueClass (JournalQueue s) where
+  type MsgQueue (JournalQueue s) = JournalMsgQueue s
+  recipientId = recipientId'
+  {-# INLINE recipientId #-}
+  queueRec = queueRec'
+  {-# INLINE queueRec #-}
+  msgQueue = msgQueue'
+  {-# INLINE msgQueue #-}
+  withQueueLock :: JournalQueue s -> String -> IO a -> IO a
+  withQueueLock JournalQueue {recipientId', queueLock, sharedLock} =
+    withLockWaitShared recipientId' queueLock sharedLock
+  {-# INLINE withQueueLock #-}
 
-instance MsgStoreClass JournalMsgStore where
-  type StoreMonad JournalMsgStore = StoreIO
-  type StoreQueue JournalMsgStore = JournalQueue
-  type MsgQueue JournalMsgStore = JournalMsgQueue
-  type MsgStoreConfig JournalMsgStore = JournalStoreConfig
+instance QueueStoreClass (JournalQueue s) (QStore s) where
+  type QueueStoreCfg (QStore s) = QStoreCfg s
 
-  newMsgStore :: JournalStoreConfig -> IO JournalMsgStore
-  newMsgStore config = do
+  newQueueStore :: QStoreCfg s -> IO (QStore s)
+  newQueueStore = \case
+    MQStoreCfg -> MQStore <$> newQueueStore @(JournalQueue s) ()
+#if defined(dbServerPostgres)
+    PQStoreCfg cfg -> PQStore <$> newQueueStore @(JournalQueue s) cfg
+#endif
+
+  closeQueueStore = withQS (closeQueueStore @(JournalQueue s))
+  {-# INLINE closeQueueStore #-}
+  loadedQueues = withQS loadedQueues
+  {-# INLINE loadedQueues #-}
+  compactQueues = withQS (compactQueues @(JournalQueue s))
+  {-# INLINE compactQueues #-}
+  queueCounts = withQS (queueCounts @(JournalQueue s))
+  {-# INLINE queueCounts #-}
+  addQueue_ = withQS addQueue_
+  {-# INLINE addQueue_ #-}
+  getQueue_ = withQS getQueue_
+  {-# INLINE getQueue_ #-}
+  secureQueue = withQS secureQueue
+  {-# INLINE secureQueue #-}
+  addQueueNotifier = withQS addQueueNotifier
+  {-# INLINE addQueueNotifier #-}
+  deleteQueueNotifier = withQS deleteQueueNotifier
+  {-# INLINE deleteQueueNotifier #-}
+  suspendQueue = withQS suspendQueue
+  {-# INLINE suspendQueue #-}
+  blockQueue = withQS blockQueue
+  {-# INLINE blockQueue #-}
+  unblockQueue = withQS unblockQueue
+  {-# INLINE unblockQueue #-}
+  updateQueueTime = withQS updateQueueTime
+  {-# INLINE updateQueueTime #-}
+  deleteStoreQueue = withQS deleteStoreQueue
+  {-# INLINE deleteStoreQueue #-}
+
+#if defined(dbServerPostgres)
+mkTempQueue :: JournalMsgStore s -> RecipientId -> QueueRec -> IO (JournalQueue s)
+mkTempQueue ms rId qr = createLockIO >>= makeQueue_ ms rId qr
+{-# INLINE mkTempQueue #-}
+#endif
+
+makeQueue_ :: JournalMsgStore s -> RecipientId -> QueueRec -> Lock -> IO (JournalQueue s)
+makeQueue_ JournalMsgStore {sharedLock} rId qr queueLock = do
+  queueRec' <- newTVarIO $ Just qr
+  msgQueue' <- newTVarIO Nothing
+  activeAt <- newTVarIO 0
+  queueState <- newTVarIO Nothing
+  pure $
+    JournalQueue
+      { recipientId' = rId,
+        queueLock,
+        sharedLock,
+        queueRec',
+        msgQueue',
+        activeAt,
+        queueState
+      }
+
+instance MsgStoreClass (JournalMsgStore s) where
+  type StoreMonad (JournalMsgStore s) = StoreIO s
+  type QueueStore (JournalMsgStore s) = QStore s
+  type StoreQueue (JournalMsgStore s) = JournalQueue s
+  type MsgStoreConfig (JournalMsgStore s) = JournalStoreConfig s
+
+  newMsgStore :: JournalStoreConfig s -> IO (JournalMsgStore s)
+  newMsgStore config@JournalStoreConfig {queueStoreCfg} = do
     random <- newTVarIO =<< newStdGen
     queueLocks <- TM.emptyIO
-    queueStore <- newQueueStore
+    sharedLock <- newEmptyTMVarIO
+    queueStore_ <- newQueueStore @(JournalQueue s) queueStoreCfg
     expireBackupsBefore <- addUTCTime (- expireBackupsAfter config) <$> getCurrentTime
-    pure JournalMsgStore {config, random, queueLocks, queueStore, expireBackupsBefore}
+    pure JournalMsgStore {config, random, queueLocks, sharedLock, queueStore_, expireBackupsBefore}
 
-  setStoreLog :: JournalMsgStore -> StoreLog 'WriteMode -> IO ()
-  setStoreLog st sl = atomically $ writeTVar (storeLog $ queueStore st) (Just sl)
-
-  closeMsgStore JournalMsgStore {queueStore = st} = do
-    readTVarIO (storeLog st) >>= mapM_ closeStoreLog
-    readTVarIO (queues st) >>= mapM_ closeMsgQueue
-
-  -- This function is a "foldr" that opens and closes all queues, processes them as defined by action and accumulates the result.
-  -- It is used to export storage to a single file and also to expire messages and validate all queues when server is started.
-  -- TODO this function requires case-sensitive file system, because it uses queue directory as recipient ID.
-  -- It can be made to support case-insensite FS by supporting more than one queue per directory, by getting recipient ID from state file name.
-  withAllMsgQueues :: forall a. Monoid a => Bool -> JournalMsgStore -> (JournalQueue -> IO a) -> IO a
-  withAllMsgQueues tty ms@JournalMsgStore {config} action = ifM (doesDirectoryExist storePath) processStore (pure mempty)
+  closeMsgStore :: JournalMsgStore s -> IO ()
+  closeMsgStore ms = do
+    let st = queueStore_ ms
+    closeQueues $ loadedQueues @(JournalQueue s) st
+    closeQueueStore @(JournalQueue s) st
     where
-      processStore = do
-        (!count, !res) <- foldQueues 0 processQueue (0, mempty) ("", storePath)
-        putStrLn $ progress count
-        pure res
-      JournalStoreConfig {storePath, pathParts} = config
-      processQueue :: (Int, a) -> (String, FilePath) -> IO (Int, a)
-      processQueue (!i, !r) (queueId, dir) = do
-        when (tty && i `mod` 100 == 0) $ putStr (progress i <> "\r") >> IO.hFlush stdout
-        r' <- case strDecode $ B.pack queueId of
-          Right rId ->
-            getQueue ms SRecipient rId >>= \case
-              Right q -> unStoreIO (getMsgQueue ms q False) *> action q <* closeMsgQueue q
-              Left AUTH -> do
-                logWarn $ "STORE: processQueue, queue " <> T.pack queueId <> " was removed, removing " <> T.pack dir
-                removeQueueDirectory_ dir
-                pure mempty
-              Left e -> do
-                logError $ "STORE: processQueue, error getting queue " <> T.pack queueId <> ", " <> tshow e
-                exitFailure
-          Left e -> do
-            logError $ "STORE: processQueue, message queue directory " <> T.pack dir <> " is invalid, " <> tshow e
-            exitFailure
-        pure (i + 1, r <> r')
-      progress i = "Processed: " <> show i <> " queues"
-      foldQueues depth f acc (queueId, path) = do
-        let f' = if depth == pathParts - 1 then f else foldQueues (depth + 1) f
-        listDirs >>= foldM f' acc
-        where
-          listDirs = fmap catMaybes . mapM queuePath =<< listDirectory path
-          queuePath dir = do
-            let !path' = path </> dir
-                !queueId' = queueId <> dir
-            ifM
-              (doesDirectoryExist path')
-              (pure $ Just (queueId', path'))
-              (Nothing <$ putStrLn ("Error: path " <> path' <> " is not a directory, skipping"))
+      closeQueues qs = readTVarIO qs >>= mapM_ closeMsgQueue
 
-  logQueueStates :: JournalMsgStore -> IO ()
+  withActiveMsgQueues :: Monoid a => JournalMsgStore s -> (JournalQueue s -> IO a) -> IO a
+  withActiveMsgQueues = withQS withLoadedQueues . queueStore_
+
+  -- This function can only be used in server CLI commands or before server is started.
+  -- It does not cache queues and is NOT concurrency safe.
+  unsafeWithAllMsgQueues :: Monoid a => Bool -> JournalMsgStore s -> (JournalQueue s -> IO a) -> IO a
+  unsafeWithAllMsgQueues tty ms action = case queueStore_ ms of
+    MQStore st -> withLoadedQueues st run 
+#if defined(dbServerPostgres)
+    PQStore st -> foldQueueRecs tty st $ uncurry (mkTempQueue ms) >=> run
+#endif
+    where
+      run q = do
+        r <- action q
+        closeMsgQueue q
+        pure r
+
+  -- This function is concurrency safe, it is used to expire queues.
+  withAllMsgQueues :: forall a. Monoid a => Bool -> String -> JournalMsgStore s -> (JournalQueue s -> StoreIO s a) -> IO a
+  withAllMsgQueues tty op ms action = case queueStore_ ms of
+    MQStore st ->
+      withLoadedQueues st $ \q ->
+        run $ isolateQueue q op $ action q
+#if defined(dbServerPostgres)
+    PQStore st -> do
+      let JournalMsgStore {queueLocks, sharedLock} = ms
+      foldQueueRecs tty st $ \(rId, qr) -> do
+        q <- mkTempQueue ms rId qr
+        withSharedWaitLock rId queueLocks sharedLock $
+          run $ tryStore' op rId $ unStoreIO $ action q
+#endif
+    where
+      run :: ExceptT ErrorType IO a -> IO a
+      run = fmap (fromRight mempty) . runExceptT
+
+  logQueueStates :: JournalMsgStore s -> IO ()
   logQueueStates ms = withActiveMsgQueues ms $ unStoreIO . logQueueState
 
-  logQueueState :: JournalQueue -> StoreIO ()
+  logQueueState :: JournalQueue s -> StoreIO s ()
   logQueueState q =
     StoreIO . void $
-      readTVarIO (msgQueue_ q)
+      readTVarIO (msgQueue' q)
         $>>= \mq -> readTVarIO (handles mq)
         $>>= (\hs -> (readTVarIO (state mq) >>= appendState (stateHandle hs)) $> Just ())
 
-  recipientId' = recipientId
-  {-# INLINE recipientId' #-}
+  queueStore = queueStore_
+  {-# INLINE queueStore #-}
 
-  queueRec' = queueRec
-  {-# INLINE queueRec' #-}
+  mkQueue :: JournalMsgStore s -> RecipientId -> QueueRec -> IO (JournalQueue s)
+  mkQueue ms rId qr = do
+    lock <- atomically $ getMapLock (queueLocks ms) rId
+    makeQueue_ ms rId qr lock
 
-  getMsgQueue :: JournalMsgStore -> JournalQueue -> Bool -> StoreIO JournalMsgQueue
-  getMsgQueue ms@JournalMsgStore {random} q'@JournalQueue {recipientId = rId, msgQueue_} forWrite =
-    StoreIO $ readTVarIO msgQueue_ >>= maybe newQ pure
+  getLoadedQueue :: JournalMsgStore s -> JournalQueue s -> StoreIO s (JournalQueue s)
+  getLoadedQueue ms sq = StoreIO $ fromMaybe sq <$> TM.lookupIO (recipientId sq) (loadedQueues $ queueStore_ ms)
+
+  getMsgQueue :: JournalMsgStore s -> JournalQueue s -> Bool -> StoreIO s (JournalMsgQueue s)
+  getMsgQueue ms@JournalMsgStore {random} q'@JournalQueue {recipientId' = rId, msgQueue'} forWrite =
+    StoreIO $ readTVarIO msgQueue' >>= maybe newQ pure
     where
       newQ = do
         let dir = msgQueueDirectory ms rId
             statePath = msgQueueStatePath dir $ B.unpack (strEncode rId)
             queue = JMQueue {queueDirectory = dir, statePath}
         q <- ifM (doesDirectoryExist dir) (openMsgQueue ms queue forWrite) (createQ queue)
-        atomically $ writeTVar msgQueue_ $ Just q
+        atomically $ writeTVar msgQueue' $ Just q
         st <- readTVarIO $ state q
         atomically $ writeTVar (queueState q') $ Just $! qState st
         pure q
         where
-          createQ :: JMQueue -> IO JournalMsgQueue
+          createQ :: JMQueue -> IO (JournalMsgQueue s)
           createQ queue = do
             -- folder and files are not created here,
             -- to avoid file IO for queues without messages during subscription
             journalId <- newJournalId random
             mkJournalQueue queue (newMsgQueueState journalId) Nothing
 
-  getPeekMsgQueue :: JournalMsgStore -> JournalQueue -> StoreIO (Maybe (JournalMsgQueue, Message))
+  getPeekMsgQueue :: JournalMsgStore s -> JournalQueue s -> StoreIO s (Maybe (JournalMsgQueue s, Message))
   getPeekMsgQueue ms q@JournalQueue {queueState} =
     StoreIO (readTVarIO queueState) >>= \case
       Just QState {hasPending} -> if hasPending then peek else pure Nothing
@@ -371,9 +480,9 @@ instance MsgStoreClass JournalMsgStore where
         (mq,) <$$> tryPeekMsg_ q mq
 
   -- only runs action if queue is not empty
-  withIdleMsgQueue :: Int64 -> JournalMsgStore -> JournalQueue -> (JournalMsgQueue -> StoreIO a) -> StoreIO (Maybe a, Int)
+  withIdleMsgQueue :: Int64 -> JournalMsgStore s -> JournalQueue s -> (JournalMsgQueue s -> StoreIO s a) -> StoreIO s (Maybe a, Int)
   withIdleMsgQueue now ms@JournalMsgStore {config} q@JournalQueue {queueState} action =
-    StoreIO $ readTVarIO (msgQueue_ q) >>= \case
+    StoreIO $ readTVarIO (msgQueue' q) >>= \case
       Nothing ->
         E.bracket
           getNonEmptyMsgQueue
@@ -392,7 +501,7 @@ instance MsgStoreClass JournalMsgStore where
         sz <- unStoreIO $ getQueueSize_ mq
         pure (r, sz)
     where
-      getNonEmptyMsgQueue :: IO (Maybe JournalMsgQueue)
+      getNonEmptyMsgQueue :: IO (Maybe (JournalMsgQueue s))
       getNonEmptyMsgQueue =
         readTVarIO queueState >>= \case
           Just QState {hasStored}
@@ -405,17 +514,17 @@ instance MsgStoreClass JournalMsgStore where
               Just QState {hasStored} | not hasStored -> closeMsgQueue q $> Nothing
               _ -> pure $ Just mq
 
-  deleteQueue :: JournalMsgStore -> JournalQueue -> IO (Either ErrorType QueueRec)
+  deleteQueue :: JournalMsgStore s -> JournalQueue s -> IO (Either ErrorType QueueRec)
   deleteQueue ms q = fst <$$> deleteQueue_ ms q
 
-  deleteQueueSize :: JournalMsgStore -> JournalQueue -> IO (Either ErrorType (QueueRec, Int))
+  deleteQueueSize :: JournalMsgStore s -> JournalQueue s -> IO (Either ErrorType (QueueRec, Int))
   deleteQueueSize ms q =
     deleteQueue_ ms q >>= mapM (traverse getSize)
     -- traverse operates on the second tuple element
     where
       getSize = maybe (pure (-1)) (fmap size . readTVarIO . state)
 
-  getQueueMessages_ :: Bool -> JournalQueue -> JournalMsgQueue -> StoreIO [Message]
+  getQueueMessages_ :: Bool -> JournalQueue s -> JournalMsgQueue s -> StoreIO s [Message]
   getQueueMessages_ drainMsgs q' q = StoreIO (run [])
     where
       run msgs = readTVarIO (handles q) >>= maybe (pure []) (getMsg msgs)
@@ -426,7 +535,7 @@ instance MsgStoreClass JournalMsgStore where
             updateReadPos q' q drainMsgs len hs
             (msg :) <$> run msgs
 
-  writeMsg :: JournalMsgStore -> JournalQueue -> Bool -> Message -> ExceptT ErrorType IO (Maybe (Message, Bool))
+  writeMsg :: JournalMsgStore s -> JournalQueue s -> Bool -> Message -> ExceptT ErrorType IO (Maybe (Message, Bool))
   writeMsg ms q' logState msg = isolateQueue q' "writeMsg" $ do
     q <- getMsgQueue ms q' True
     StoreIO $ (`E.finally` updateActiveAt q') $ do
@@ -473,15 +582,15 @@ instance MsgStoreClass JournalMsgStore where
             pure (newJournalState journalId, wh)
 
   -- can ONLY be used while restoring messages, not while server running
-  setOverQuota_ :: JournalQueue -> IO ()
+  setOverQuota_ :: JournalQueue s -> IO ()
   setOverQuota_ q =
-    readTVarIO (msgQueue_ q)
+    readTVarIO (msgQueue' q)
       >>= mapM_ (\JournalMsgQueue {state} -> atomically $ modifyTVar' state $ \st -> st {canWrite = False})
 
-  getQueueSize_ :: JournalMsgQueue -> StoreIO Int
+  getQueueSize_ :: JournalMsgQueue s -> StoreIO s Int
   getQueueSize_ JournalMsgQueue {state} = StoreIO $ size <$> readTVarIO state
 
-  tryPeekMsg_ :: JournalQueue -> JournalMsgQueue -> StoreIO (Maybe Message)
+  tryPeekMsg_ :: JournalQueue s -> JournalMsgQueue s -> StoreIO s (Maybe Message)
   tryPeekMsg_ q mq@JournalMsgQueue {tipMsg, handles} =
     StoreIO $ (readTVarIO handles $>>= chooseReadJournal q mq True $>>= peekMsg)
     where
@@ -492,7 +601,7 @@ instance MsgStoreClass JournalMsgStore where
             atomically $ writeTVar tipMsg $ Just (Just ml)
             pure $ Just msg
 
-  tryDeleteMsg_ :: JournalQueue -> JournalMsgQueue -> Bool -> StoreIO ()
+  tryDeleteMsg_ :: JournalQueue s -> JournalMsgQueue s -> Bool -> StoreIO s ()
   tryDeleteMsg_ q mq@JournalMsgQueue {tipMsg, handles} logState = StoreIO $ (`E.finally` when logState (updateActiveAt q)) $
     void $
       readTVarIO tipMsg -- if there is no cached tipMsg, do nothing
@@ -500,28 +609,32 @@ instance MsgStoreClass JournalMsgStore where
         $>>= \len -> readTVarIO handles
         $>>= \hs -> updateReadPos q mq logState len hs $> Just ()
 
-  isolateQueue :: JournalQueue -> String -> StoreIO a -> ExceptT ErrorType IO a
-  isolateQueue JournalQueue {recipientId, queueLock} op =
-    tryStore' op recipientId . withLock' queueLock op . unStoreIO
+  isolateQueue :: JournalQueue s -> String -> StoreIO s a -> ExceptT ErrorType IO a
+  isolateQueue sq op = tryStore' op (recipientId' sq) . withQueueLock sq op . unStoreIO
 
-updateActiveAt :: JournalQueue -> IO ()
+  unsafeRunStore :: JournalQueue s -> String -> StoreIO s a -> IO a
+  unsafeRunStore sq op a =
+    unStoreIO a `E.catch` \e -> storeError op (recipientId' sq) e >> E.throwIO e
+
+updateActiveAt :: JournalQueue s -> IO ()
 updateActiveAt q = atomically . writeTVar (activeAt q) . systemSeconds =<< getSystemTime
 
 tryStore' :: String -> RecipientId -> IO a -> ExceptT ErrorType IO a
 tryStore' op rId = tryStore op rId . fmap Right
 
 tryStore :: forall a. String -> RecipientId -> IO (Either ErrorType a) -> ExceptT ErrorType IO a
-tryStore op rId a = ExceptT $ E.mask_ $ E.try a >>= either storeErr pure
-  where
-    storeErr :: E.SomeException -> IO (Either ErrorType a)
-    storeErr e =
-      let e' = intercalate ", " [op, B.unpack $ strEncode rId, show e]
-       in logError ("STORE: " <> T.pack e') $> Left (STORE e')
+tryStore op rId a = ExceptT $ E.mask_ $ a `E.catch` storeError op rId
 
-isolateQueueId :: String -> JournalMsgStore -> RecipientId -> IO (Either ErrorType a) -> ExceptT ErrorType IO a
-isolateQueueId op ms rId = tryStore op rId . withLockMap (queueLocks ms) rId op
+storeError :: String -> RecipientId -> E.SomeException -> IO (Either ErrorType a)
+storeError op rId e =
+  let e' = intercalate ", " [op, B.unpack $ strEncode rId, show e]
+    in logError ("STORE: " <> T.pack e') $> Left (STORE e')
 
-openMsgQueue :: JournalMsgStore -> JMQueue -> Bool -> IO JournalMsgQueue
+isolateQueueId :: String -> JournalMsgStore s -> RecipientId -> IO (Either ErrorType a) -> ExceptT ErrorType IO a
+isolateQueueId op JournalMsgStore {queueLocks, sharedLock} rId =
+  tryStore op rId . withLockMapWaitShared rId queueLocks sharedLock op
+
+openMsgQueue :: JournalMsgStore s -> JMQueue -> Bool -> IO (JournalMsgQueue s)
 openMsgQueue ms@JournalMsgStore {config} q@JMQueue {queueDirectory = dir, statePath} forWrite = do
   (st_, shouldBackup) <- readQueueState ms statePath
   case st_ of
@@ -581,7 +694,7 @@ openMsgQueue ms@JournalMsgStore {config} q@JMQueue {queueDirectory = dir, stateP
         backupPathTime = iso8601ParseM . T.unpack <=< T.stripSuffix ".bak" <=< T.stripPrefix statePathPfx . T.pack
         statePathPfx = T.pack $ takeFileName statePath <> "."
 
-mkJournalQueue :: JMQueue -> MsgQueueState -> Maybe MsgQueueHandles -> IO JournalMsgQueue
+mkJournalQueue :: JMQueue -> MsgQueueState -> Maybe MsgQueueHandles -> IO (JournalMsgQueue s)
 mkJournalQueue queue st hs_ = do
   state <- newTVarIO st
   tipMsg <- newTVarIO Nothing
@@ -590,7 +703,7 @@ mkJournalQueue queue st hs_ = do
   -- to avoid map lookup on queue operations
   pure JournalMsgQueue {queue, state, tipMsg, handles}
 
-chooseReadJournal :: JournalQueue -> JournalMsgQueue -> Bool -> MsgQueueHandles -> IO (Maybe (JournalState 'JTRead, Handle))
+chooseReadJournal :: JournalQueue s -> JournalMsgQueue s -> Bool -> MsgQueueHandles -> IO (Maybe (JournalState 'JTRead, Handle))
 chooseReadJournal q' q log' hs = do
   st@MsgQueueState {writeState = ws, readState = rs} <- readTVarIO (state q)
   case writeHandle hs of
@@ -606,7 +719,7 @@ chooseReadJournal q' q log' hs = do
     _ | msgPos rs >= msgCount rs && journalId rs == journalId ws -> pure Nothing
     _ -> pure $ Just (rs, readHandle hs)
 
-updateQueueState :: JournalQueue -> JournalMsgQueue -> Bool -> MsgQueueHandles -> MsgQueueState -> STM () -> IO ()
+updateQueueState :: JournalQueue s -> JournalMsgQueue s -> Bool -> MsgQueueHandles -> MsgQueueState -> STM () -> IO ()
 updateQueueState q' q log' hs st a = do
   unless (validQueueState st) $ E.throwIO $ userError $ "updateQueueState invalid state: " <> show st
   when log' $ appendState (stateHandle hs) st
@@ -620,7 +733,7 @@ appendState h = E.uninterruptibleMask_ . appendState_ h
 appendState_ :: Handle -> MsgQueueState -> IO ()
 appendState_ h st = B.hPutStr h $ strEncode st `B.snoc` '\n'
 
-updateReadPos :: JournalQueue -> JournalMsgQueue -> Bool -> Int64 -> MsgQueueHandles -> IO ()
+updateReadPos :: JournalQueue s -> JournalMsgQueue s -> Bool -> Int64 -> MsgQueueHandles -> IO ()
 updateReadPos q' q log' len hs = do
   st@MsgQueueState {readState = rs, size} <- readTVarIO (state q)
   let JournalState {msgPos, bytePos} = rs
@@ -629,7 +742,7 @@ updateReadPos q' q log' len hs = do
       st' = st {readState = rs', size = size - 1}
   updateQueueState q' q log' hs st' $ writeTVar (tipMsg q) Nothing
 
-msgQueueDirectory :: JournalMsgStore -> RecipientId -> FilePath
+msgQueueDirectory :: JournalMsgStore s -> RecipientId -> FilePath
 msgQueueDirectory JournalMsgStore {config = JournalStoreConfig {storePath, pathParts}} rId =
   storePath </> B.unpack (B.intercalate "/" $ splitSegments pathParts $ strEncode rId)
   where
@@ -652,7 +765,7 @@ createNewJournal dir journalId = do
 newJournalId :: TVar StdGen -> IO ByteString
 newJournalId g = strEncode <$> atomically (stateTVar g $ genByteString 12)
 
-openJournals :: JournalMsgStore -> FilePath -> MsgQueueState -> Handle -> IO (MsgQueueState, Handle, Maybe Handle)
+openJournals :: JournalMsgStore s -> FilePath -> MsgQueueState -> Handle -> IO (MsgQueueState, Handle, Maybe Handle)
 openJournals ms dir st@MsgQueueState {readState = rs, writeState = ws} sh = do
   let rjId = journalId rs
       wjId = journalId ws
@@ -737,7 +850,7 @@ handleError cxt path a =
 
 -- This function is supposed to be resilient to crashes while updating state files,
 -- and also resilient to crashes during its execution.
-readQueueState :: JournalMsgStore -> FilePath -> IO (Maybe MsgQueueState, Bool)
+readQueueState :: JournalMsgStore s -> FilePath -> IO (Maybe MsgQueueState, Bool)
 readQueueState JournalMsgStore {config} statePath =
   ifM
     (doesFileExist tempBackup)
@@ -801,10 +914,11 @@ validQueueState MsgQueueState {readState = rs, writeState = ws, size}
         && msgPos ws == msgCount ws
         && bytePos ws == byteCount ws
 
-deleteQueue_ :: JournalMsgStore -> JournalQueue -> IO (Either ErrorType (QueueRec, Maybe JournalMsgQueue))
+-- TODO [postgres] possibly, we need to remove the lock from map
+deleteQueue_ :: JournalMsgStore s -> JournalQueue s -> IO (Either ErrorType (QueueRec, Maybe (JournalMsgQueue s)))
 deleteQueue_ ms q =
   runExceptT $ isolateQueueId "deleteQueue_" ms rId $
-    deleteQueue' ms q >>= mapM remove
+    deleteStoreQueue (queueStore_ ms) q >>= mapM remove
   where
     rId = recipientId q
     remove r@(_, mq_) = do
@@ -812,10 +926,10 @@ deleteQueue_ ms q =
       removeQueueDirectory ms rId
       pure r
 
-closeMsgQueue :: JournalQueue -> IO ()
-closeMsgQueue JournalQueue {msgQueue_} = atomically (swapTVar msgQueue_ Nothing) >>= mapM_ closeMsgQueueHandles
+closeMsgQueue :: JournalQueue s -> IO ()
+closeMsgQueue JournalQueue {msgQueue'} = atomically (swapTVar msgQueue' Nothing) >>= mapM_ closeMsgQueueHandles
 
-closeMsgQueueHandles :: JournalMsgQueue -> IO ()
+closeMsgQueueHandles :: JournalMsgQueue s -> IO ()
 closeMsgQueueHandles q = readTVarIO (handles q) >>= mapM_ closeHandles
   where
     closeHandles (MsgQueueHandles sh rh wh_) = do
@@ -823,7 +937,7 @@ closeMsgQueueHandles q = readTVarIO (handles q) >>= mapM_ closeHandles
       hClose rh
       mapM_ hClose wh_
 
-removeQueueDirectory :: JournalMsgStore -> RecipientId -> IO ()
+removeQueueDirectory :: JournalMsgStore s -> RecipientId -> IO ()
 removeQueueDirectory st = removeQueueDirectory_ . msgQueueDirectory st
 
 removeQueueDirectory_ :: FilePath -> IO ()
diff --git a/src/Simplex/Messaging/Server/MsgStore/Journal/SharedLock.hs b/src/Simplex/Messaging/Server/MsgStore/Journal/SharedLock.hs
new file mode 100644
index 000000000..4e09f3895
--- /dev/null
+++ b/src/Simplex/Messaging/Server/MsgStore/Journal/SharedLock.hs
@@ -0,0 +1,43 @@
+module Simplex.Messaging.Server.MsgStore.Journal.SharedLock
+  ( withLockWaitShared,
+    withLockMapWaitShared,
+    withSharedWaitLock,
+  )
+where
+
+import Control.Concurrent.STM
+import qualified Control.Exception as E
+import Control.Monad
+import Simplex.Messaging.Agent.Lock
+import Simplex.Messaging.Agent.Client (getMapLock)
+import Simplex.Messaging.Protocol (RecipientId)
+import Simplex.Messaging.TMap (TMap)
+import qualified Simplex.Messaging.TMap as TM
+import Simplex.Messaging.Util (($>>), ($>>=))
+
+-- wait until shared lock with passed ID is released and take lock
+withLockWaitShared :: RecipientId -> Lock -> TMVar RecipientId -> String -> IO a -> IO a
+withLockWaitShared rId lock shared name =
+  E.bracket_
+    (atomically $ waitShared rId shared >> putTMVar lock name)
+    (void $ atomically $ takeTMVar lock)
+
+-- wait until shared lock with passed ID is released and take lock from Map for this ID
+withLockMapWaitShared :: RecipientId -> TMap RecipientId Lock -> TMVar RecipientId -> String -> IO a -> IO a
+withLockMapWaitShared rId locks shared name a =
+  E.bracket
+    (atomically $ waitShared rId shared >> getPutLock (getMapLock locks) rId name)
+    (atomically . takeTMVar)
+    (const a)
+
+waitShared :: RecipientId -> TMVar RecipientId -> STM ()
+waitShared rId shared = tryReadTMVar shared >>= mapM_ (\rId' -> when (rId == rId') retry)
+
+-- wait until lock with passed ID in Map is released and take shared lock for this ID
+withSharedWaitLock :: RecipientId -> TMap RecipientId Lock -> TMVar RecipientId -> IO a -> IO a
+withSharedWaitLock rId locks shared =
+  E.bracket_
+    (atomically $ waitLock >> putTMVar shared rId)
+    (atomically $ takeTMVar shared)
+  where
+    waitLock = TM.lookup rId locks $>>= tryReadTMVar $>> retry
diff --git a/src/Simplex/Messaging/Server/MsgStore/STM.hs b/src/Simplex/Messaging/Server/MsgStore/STM.hs
index ac462a71a..43a41d7ca 100644
--- a/src/Simplex/Messaging/Server/MsgStore/STM.hs
+++ b/src/Simplex/Messaging/Server/MsgStore/STM.hs
@@ -7,12 +7,14 @@
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE TypeApplications #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE TupleSections #-}
 
 module Simplex.Messaging.Server.MsgStore.STM
   ( STMMsgStore (..),
     STMStoreConfig (..),
+    STMQueue,
   )
 where
 
@@ -25,25 +27,24 @@ import Simplex.Messaging.Protocol
 import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.QueueStore
 import Simplex.Messaging.Server.QueueStore.STM
-import Simplex.Messaging.Server.StoreLog
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.Util ((<$$>), ($>>=))
-import System.IO (IOMode (..))
 
 data STMMsgStore = STMMsgStore
   { storeConfig :: STMStoreConfig,
-    queueStore :: STMQueueStore STMQueue
+    queueStore_ :: STMQueueStore STMQueue
   }
 
 data STMQueue = STMQueue
   { -- To avoid race conditions and errors when restoring queues,
     -- Nothing is written to TVar when queue is deleted.
-    recipientId :: RecipientId,
-    queueRec :: TVar (Maybe QueueRec),
-    msgQueue_ :: TVar (Maybe STMMsgQueue)
+    recipientId' :: RecipientId,
+    queueRec' :: TVar (Maybe QueueRec),
+    msgQueue' :: TVar (Maybe STMMsgQueue)
   }
 
 data STMMsgQueue = STMMsgQueue
-  { msgQueue :: TQueue Message,
+  { msgTQueue :: TQueue Message,
     canWrite :: TVar Bool,
     size :: TVar Int
   }
@@ -53,59 +54,67 @@ data STMStoreConfig = STMStoreConfig
     quota :: Int
   }
 
-instance STMStoreClass STMMsgStore where
-  stmQueueStore = queueStore
-  mkQueue _ rId qr = STMQueue rId <$> newTVar (Just qr) <*> newTVar Nothing
-  msgQueue_' = msgQueue_
+instance StoreQueueClass STMQueue where
+  type MsgQueue STMQueue = STMMsgQueue
+  recipientId = recipientId'
+  {-# INLINE recipientId #-}
+  queueRec = queueRec'
+  {-# INLINE queueRec #-}
+  msgQueue = msgQueue'
+  {-# INLINE msgQueue #-}
+  withQueueLock _ _ = id
+  {-# INLINE withQueueLock #-}
 
 instance MsgStoreClass STMMsgStore where
   type StoreMonad STMMsgStore = STM
+  type QueueStore STMMsgStore = STMQueueStore STMQueue
   type StoreQueue STMMsgStore = STMQueue
-  type MsgQueue STMMsgStore = STMMsgQueue
   type MsgStoreConfig STMMsgStore = STMStoreConfig
 
   newMsgStore :: STMStoreConfig -> IO STMMsgStore
   newMsgStore storeConfig = do
-    queueStore <- newQueueStore
-    pure STMMsgStore {storeConfig, queueStore}
+    queueStore_ <- newQueueStore @STMQueue ()
+    pure STMMsgStore {storeConfig, queueStore_}
 
-  setStoreLog :: STMMsgStore -> StoreLog 'WriteMode -> IO ()
-  setStoreLog st sl = atomically $ writeTVar (storeLog $ queueStore st) (Just sl)
-
-  closeMsgStore st = readTVarIO (storeLog $ queueStore st) >>= mapM_ closeStoreLog
-
-  withAllMsgQueues _ = withActiveMsgQueues
+  closeMsgStore = closeQueueStore @STMQueue . queueStore_
+  {-# INLINE closeMsgStore #-}
+  withActiveMsgQueues = withLoadedQueues . queueStore_
+  {-# INLINE withActiveMsgQueues #-}
+  unsafeWithAllMsgQueues _ = withLoadedQueues . queueStore_
+  {-# INLINE unsafeWithAllMsgQueues #-}
+  withAllMsgQueues _tty _op ms action = withLoadedQueues (queueStore_ ms) $ atomically . action
   {-# INLINE withAllMsgQueues #-}
-
   logQueueStates _ = pure ()
   {-# INLINE logQueueStates #-}
-
   logQueueState _ = pure ()
   {-# INLINE logQueueState #-}
+  queueStore = queueStore_
+  {-# INLINE queueStore #-}
 
-  recipientId' = recipientId
-  {-# INLINE recipientId' #-}
+  mkQueue _ rId qr = STMQueue rId <$> newTVarIO (Just qr) <*> newTVarIO Nothing
+  {-# INLINE mkQueue #-}
 
-  queueRec' = queueRec
-  {-# INLINE queueRec' #-}
+  getLoadedQueue :: STMMsgStore -> STMQueue -> STM STMQueue
+  getLoadedQueue _ = pure
+  {-# INLINE getLoadedQueue #-}
 
   getMsgQueue :: STMMsgStore -> STMQueue -> Bool -> STM STMMsgQueue
-  getMsgQueue _ STMQueue {msgQueue_} _ = readTVar msgQueue_ >>= maybe newQ pure
+  getMsgQueue _ STMQueue {msgQueue'} _ = readTVar msgQueue' >>= maybe newQ pure
     where
       newQ = do
-        msgQueue <- newTQueue
+        msgTQueue <- newTQueue
         canWrite <- newTVar True
         size <- newTVar 0
-        let q = STMMsgQueue {msgQueue, canWrite, size}
-        writeTVar msgQueue_ (Just q)
+        let q = STMMsgQueue {msgTQueue, canWrite, size}
+        writeTVar msgQueue' (Just q)
         pure q
 
   getPeekMsgQueue :: STMMsgStore -> STMQueue -> STM (Maybe (STMMsgQueue, Message))
-  getPeekMsgQueue _ q@STMQueue {msgQueue_} = readTVar msgQueue_ $>>= \mq -> (mq,) <$$> tryPeekMsg_ q mq
+  getPeekMsgQueue _ q@STMQueue {msgQueue'} = readTVar msgQueue' $>>= \mq -> (mq,) <$$> tryPeekMsg_ q mq
 
   -- does not create queue if it does not exist, does not delete it if it does (can't just close in-memory queue)
   withIdleMsgQueue :: Int64 -> STMMsgStore -> STMQueue -> (STMMsgQueue -> STM a) -> STM (Maybe a, Int)
-  withIdleMsgQueue _ _ STMQueue {msgQueue_} action = readTVar msgQueue_ >>= \case
+  withIdleMsgQueue _ _ STMQueue {msgQueue'} action = readTVar msgQueue' >>= \case
     Just q -> do
       r <- action q
       sz <- getQueueSize_ q
@@ -113,16 +122,16 @@ instance MsgStoreClass STMMsgStore where
     Nothing -> pure (Nothing, 0)
 
   deleteQueue :: STMMsgStore -> STMQueue -> IO (Either ErrorType QueueRec)
-  deleteQueue ms q = fst <$$> deleteQueue' ms q
+  deleteQueue ms q = fst <$$> deleteStoreQueue (queueStore_ ms) q
 
   deleteQueueSize :: STMMsgStore -> STMQueue -> IO (Either ErrorType (QueueRec, Int))
-  deleteQueueSize ms q = deleteQueue' ms q >>= mapM (traverse getSize)
+  deleteQueueSize ms q = deleteStoreQueue (queueStore_ ms) q >>= mapM (traverse getSize)
     -- traverse operates on the second tuple element
     where
       getSize = maybe (pure 0) (\STMMsgQueue {size} -> readTVarIO size)
 
   getQueueMessages_ :: Bool -> STMQueue -> STMMsgQueue -> STM [Message]
-  getQueueMessages_ drainMsgs _ = (if drainMsgs then flushTQueue else snapshotTQueue) . msgQueue
+  getQueueMessages_ drainMsgs _ = (if drainMsgs then flushTQueue else snapshotTQueue) . msgTQueue
     where
       snapshotTQueue q = do
         msgs <- flushTQueue q
@@ -131,7 +140,7 @@ instance MsgStoreClass STMMsgStore where
 
   writeMsg :: STMMsgStore -> STMQueue -> Bool -> Message -> ExceptT ErrorType IO (Maybe (Message, Bool))
   writeMsg ms q' _logState msg = liftIO $ atomically $ do
-    STMMsgQueue {msgQueue = q, canWrite, size} <- getMsgQueue ms q' True
+    STMMsgQueue {msgTQueue = q, canWrite, size} <- getMsgQueue ms q' True
     canWrt <- readTVar canWrite
     empty <- isEmptyTQueue q
     if canWrt || empty
@@ -148,20 +157,25 @@ instance MsgStoreClass STMMsgStore where
       msgQuota = MessageQuota {msgId = messageId msg, msgTs = messageTs msg}
 
   setOverQuota_ :: STMQueue -> IO ()
-  setOverQuota_ q = readTVarIO (msgQueue_ q) >>= mapM_ (\mq -> atomically $ writeTVar (canWrite mq) False)
+  setOverQuota_ q = readTVarIO (msgQueue' q) >>= mapM_ (\mq -> atomically $ writeTVar (canWrite mq) False)
 
   getQueueSize_ :: STMMsgQueue -> STM Int
   getQueueSize_ STMMsgQueue {size} = readTVar size
 
   tryPeekMsg_ :: STMQueue -> STMMsgQueue -> STM (Maybe Message)
-  tryPeekMsg_ _ = tryPeekTQueue . msgQueue
+  tryPeekMsg_ _ = tryPeekTQueue . msgTQueue
   {-# INLINE tryPeekMsg_ #-}
 
   tryDeleteMsg_ :: STMQueue -> STMMsgQueue -> Bool -> STM ()
-  tryDeleteMsg_ _ STMMsgQueue {msgQueue = q, size} _logState =
+  tryDeleteMsg_ _ STMMsgQueue {msgTQueue = q, size} _logState =
     tryReadTQueue q >>= \case
       Just _ -> modifyTVar' size (subtract 1)
       _ -> pure ()
 
   isolateQueue :: STMQueue -> String -> STM a -> ExceptT ErrorType IO a
   isolateQueue _ _ = liftIO . atomically
+  {-# INLINE isolateQueue #-}
+
+  unsafeRunStore :: STMQueue -> String -> STM a -> IO a
+  unsafeRunStore _ _ = atomically
+  {-# INLINE unsafeRunStore #-}
diff --git a/src/Simplex/Messaging/Server/MsgStore/Types.hs b/src/Simplex/Messaging/Server/MsgStore/Types.hs
index ada1ca333..514b67d7b 100644
--- a/src/Simplex/Messaging/Server/MsgStore/Types.hs
+++ b/src/Simplex/Messaging/Server/MsgStore/Types.hs
@@ -6,7 +6,9 @@
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE MultiWayIf #-}
 {-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TupleSections #-}
+{-# LANGUAGE TypeApplications #-}
 {-# LANGUAGE TypeFamilyDependencies #-}
 {-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
 
@@ -15,7 +17,6 @@
 module Simplex.Messaging.Server.MsgStore.Types where
 
 import Control.Concurrent.STM
-import Control.Monad (foldM)
 import Control.Monad.Trans.Except
 import Data.Functor (($>))
 import Data.Int (Int64)
@@ -23,67 +24,67 @@ import Data.Kind
 import Data.Time.Clock.System (SystemTime (systemSeconds))
 import Simplex.Messaging.Protocol
 import Simplex.Messaging.Server.QueueStore
-import Simplex.Messaging.Server.StoreLog.Types
-import Simplex.Messaging.TMap (TMap)
-import Simplex.Messaging.Util ((<$$>))
-import System.IO (IOMode (..))
+import Simplex.Messaging.Server.QueueStore.Types
+import Simplex.Messaging.Util ((<$$>), ($>>=))
 
-data STMQueueStore q = STMQueueStore
-  { queues :: TMap RecipientId q,
-    senders :: TMap SenderId RecipientId,
-    notifiers :: TMap NotifierId RecipientId,
-    storeLog :: TVar (Maybe (StoreLog 'WriteMode))
-  }
-
-class MsgStoreClass s => STMStoreClass s where
-  stmQueueStore :: s -> STMQueueStore (StoreQueue s)
-  mkQueue :: s -> RecipientId -> QueueRec -> STM (StoreQueue s)
-  msgQueue_' :: StoreQueue s -> TVar (Maybe (MsgQueue s))
-
-class Monad (StoreMonad s) => MsgStoreClass s where
+class (Monad (StoreMonad s), QueueStoreClass (StoreQueue s) (QueueStore s)) => MsgStoreClass s where
   type StoreMonad s = (m :: Type -> Type) | m -> s
   type MsgStoreConfig s = c | c -> s
   type StoreQueue s = q | q -> s
-  type MsgQueue s = q | q -> s
+  type QueueStore s = qs | qs -> s
   newMsgStore :: MsgStoreConfig s -> IO s
-  setStoreLog :: s -> StoreLog 'WriteMode -> IO ()
   closeMsgStore :: s -> IO ()
-  withAllMsgQueues :: Monoid a => Bool -> s -> (StoreQueue s -> IO a) -> IO a
+  withActiveMsgQueues :: Monoid a => s -> (StoreQueue s -> IO a) -> IO a
+  -- This function can only be used in server CLI commands or before server is started.
+  unsafeWithAllMsgQueues :: Monoid a => Bool -> s -> (StoreQueue s -> IO a) -> IO a
+  withAllMsgQueues :: Monoid a => Bool -> String -> s -> (StoreQueue s -> StoreMonad s a) -> IO a
   logQueueStates :: s -> IO ()
   logQueueState :: StoreQueue s -> StoreMonad s ()
-  recipientId' :: StoreQueue s -> RecipientId
-  queueRec' :: StoreQueue s -> TVar (Maybe QueueRec)
-  getPeekMsgQueue :: s -> StoreQueue s -> StoreMonad s (Maybe (MsgQueue s, Message))
-  getMsgQueue :: s -> StoreQueue s -> Bool -> StoreMonad s (MsgQueue s)
+  queueStore :: s -> QueueStore s
+
+  -- message store methods
+  mkQueue :: s -> RecipientId -> QueueRec -> IO (StoreQueue s)
+  getLoadedQueue :: s -> StoreQueue s -> StoreMonad s (StoreQueue s)
+  getMsgQueue :: s -> StoreQueue s -> Bool -> StoreMonad s (MsgQueue (StoreQueue s))
+  getPeekMsgQueue :: s -> StoreQueue s -> StoreMonad s (Maybe (MsgQueue (StoreQueue s), Message))
 
   -- the journal queue will be closed after action if it was initially closed or idle longer than interval in config
-  withIdleMsgQueue :: Int64 -> s -> StoreQueue s -> (MsgQueue s -> StoreMonad s a) -> StoreMonad s (Maybe a, Int)
+  withIdleMsgQueue :: Int64 -> s -> StoreQueue s -> (MsgQueue (StoreQueue s) -> StoreMonad s a) -> StoreMonad s (Maybe a, Int)
   deleteQueue :: s -> StoreQueue s -> IO (Either ErrorType QueueRec)
   deleteQueueSize :: s -> StoreQueue s -> IO (Either ErrorType (QueueRec, Int))
-  getQueueMessages_ :: Bool -> StoreQueue s -> MsgQueue s -> StoreMonad s [Message]
+  getQueueMessages_ :: Bool -> StoreQueue s -> MsgQueue (StoreQueue s) -> StoreMonad s [Message]
   writeMsg :: s -> StoreQueue s -> Bool -> Message -> ExceptT ErrorType IO (Maybe (Message, Bool))
   setOverQuota_ :: StoreQueue s -> IO () -- can ONLY be used while restoring messages, not while server running
-  getQueueSize_ :: MsgQueue s -> StoreMonad s Int
-  tryPeekMsg_ :: StoreQueue s -> MsgQueue s -> StoreMonad s (Maybe Message)
-  tryDeleteMsg_ :: StoreQueue s -> MsgQueue s -> Bool -> StoreMonad s ()
+  getQueueSize_ :: MsgQueue (StoreQueue s) -> StoreMonad s Int
+  tryPeekMsg_ :: StoreQueue s -> MsgQueue (StoreQueue s) -> StoreMonad s (Maybe Message)
+  tryDeleteMsg_ :: StoreQueue s -> MsgQueue (StoreQueue s) -> Bool -> StoreMonad s ()
   isolateQueue :: StoreQueue s -> String -> StoreMonad s a -> ExceptT ErrorType IO a
+  unsafeRunStore :: StoreQueue s -> String -> StoreMonad s a -> IO a
 
 data MSType = MSMemory | MSJournal
 
+data QSType = QSMemory | QSPostgres
+
 data SMSType :: MSType -> Type where
   SMSMemory :: SMSType 'MSMemory
   SMSJournal :: SMSType 'MSJournal
 
-data AMSType = forall s. AMSType (SMSType s)
+data SQSType :: QSType -> Type where
+  SQSMemory :: SQSType 'QSMemory
+  SQSPostgres :: SQSType 'QSPostgres
 
-withActiveMsgQueues :: (STMStoreClass s, Monoid a) => s -> (StoreQueue s -> IO a) -> IO a
-withActiveMsgQueues st f = readTVarIO (queues $ stmQueueStore st) >>= foldM run mempty
-  where
-    run !acc = fmap (acc <>) . f
+addQueue :: MsgStoreClass s => s -> RecipientId -> QueueRec -> IO (Either ErrorType (StoreQueue s))
+addQueue st = addQueue_ (queueStore st) (mkQueue st)
+{-# INLINE addQueue #-}
 
-getQueueMessages :: MsgStoreClass s => Bool -> s -> StoreQueue s -> ExceptT ErrorType IO [Message]
-getQueueMessages drainMsgs st q = withPeekMsgQueue st q "getQueueSize" $ maybe (pure []) (getQueueMessages_ drainMsgs q . fst)
-{-# INLINE getQueueMessages #-}
+getQueue :: (MsgStoreClass s, DirectParty p) => s -> SParty p -> QueueId -> IO (Either ErrorType (StoreQueue s))
+getQueue st = getQueue_ (queueStore st) (mkQueue st)
+{-# INLINE getQueue #-}
+
+getQueueRec :: (MsgStoreClass s, DirectParty p) => s -> SParty p -> QueueId -> IO (Either ErrorType (StoreQueue s, QueueRec))
+getQueueRec st party qId =
+  getQueue st party qId
+    $>>= (\q -> maybe (Left AUTH) (Right . (q,)) <$> readTVarIO (queueRec q))
 
 getQueueSize :: MsgStoreClass s => s -> StoreQueue s -> ExceptT ErrorType IO Int
 getQueueSize st q = withPeekMsgQueue st q "getQueueSize" $ maybe (pure 0) (getQueueSize_ . fst)
@@ -112,7 +113,7 @@ tryDelPeekMsg st q msgId' =
         | otherwise -> pure (Nothing, Just msg)
 
 -- The action is called with Nothing when it is known that the queue is empty
-withPeekMsgQueue :: MsgStoreClass s => s -> StoreQueue s -> String -> (Maybe (MsgQueue s, Message) -> StoreMonad s a) -> ExceptT ErrorType IO a
+withPeekMsgQueue :: MsgStoreClass s => s -> StoreQueue s -> String -> (Maybe (MsgQueue (StoreQueue s), Message) -> StoreMonad s a) -> ExceptT ErrorType IO a
 withPeekMsgQueue st q op a = isolateQueue q op $ getPeekMsgQueue st q >>= a
 {-# INLINE withPeekMsgQueue #-}
 
@@ -123,12 +124,14 @@ deleteExpiredMsgs st q old =
 
 -- closed and idle queues will be closed after expiration
 -- returns (expired count, queue size after expiration)
-idleDeleteExpiredMsgs :: MsgStoreClass s => Int64 -> s -> StoreQueue s -> Int64 -> ExceptT ErrorType IO (Maybe Int, Int)
-idleDeleteExpiredMsgs now st q old =
-  isolateQueue q "idleDeleteExpiredMsgs" $
-    withIdleMsgQueue now st q (deleteExpireMsgs_ old q)
+idleDeleteExpiredMsgs :: MsgStoreClass s => Int64 -> s -> StoreQueue s -> Int64 -> StoreMonad s (Maybe Int, Int)
+idleDeleteExpiredMsgs now st q old = do
+  -- Use cached queue if available.
+  -- Also see the comment in loadQueue in PostgresQueueStore
+  q' <- getLoadedQueue st q
+  withIdleMsgQueue now st q' $ deleteExpireMsgs_ old q'
 
-deleteExpireMsgs_ :: MsgStoreClass s => Int64 -> StoreQueue s -> MsgQueue s -> StoreMonad s Int
+deleteExpireMsgs_ :: MsgStoreClass s => Int64 -> StoreQueue s -> MsgQueue (StoreQueue s) -> StoreMonad s Int
 deleteExpireMsgs_ old q mq = do
   n <- loop 0
   logQueueState q
diff --git a/src/Simplex/Messaging/Server/QueueStore.hs b/src/Simplex/Messaging/Server/QueueStore.hs
index af26b91f7..f4c2f108e 100644
--- a/src/Simplex/Messaging/Server/QueueStore.hs
+++ b/src/Simplex/Messaging/Server/QueueStore.hs
@@ -1,4 +1,6 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE DataKinds #-}
+{-# LANGUAGE DerivingStrategies #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE KindSignatures #-}
 {-# LANGUAGE LambdaCase #-}
@@ -14,6 +16,13 @@ import Data.Int (Int64)
 import Data.Time.Clock.System (SystemTime (..), getSystemTime)
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Protocol
+#if defined(dbServerPostgres)
+import Data.Text.Encoding (decodeLatin1, encodeUtf8)
+import Database.PostgreSQL.Simple.FromField (FromField (..))
+import Database.PostgreSQL.Simple.ToField (ToField (..))
+import Simplex.Messaging.Agent.Store.Postgres.DB (fromTextField_)
+import Simplex.Messaging.Util (eitherToMaybe)
+#endif
 
 data QueueRec = QueueRec
   { recipientKey :: !RcvPublicAuthKey,
@@ -56,8 +65,17 @@ instance StrEncoding ServerEntityStatus where
       <|> "blocked," *> (EntityBlocked <$> strP)
       <|> "off" $> EntityOff
 
+#if defined(dbServerPostgres)
+instance FromField ServerEntityStatus where fromField = fromTextField_ $ eitherToMaybe . strDecode . encodeUtf8
+
+instance ToField ServerEntityStatus where toField = toField . decodeLatin1 . strEncode
+#endif
+
 newtype RoundedSystemTime = RoundedSystemTime Int64
   deriving (Eq, Ord, Show)
+#if defined(dbServerPostgres)
+  deriving newtype (FromField, ToField)
+#endif
 
 instance StrEncoding RoundedSystemTime where
   strEncode (RoundedSystemTime t) = strEncode t
diff --git a/src/Simplex/Messaging/Server/QueueStore/Postgres.hs b/src/Simplex/Messaging/Server/QueueStore/Postgres.hs
new file mode 100644
index 000000000..3062e2313
--- /dev/null
+++ b/src/Simplex/Messaging/Server/QueueStore/Postgres.hs
@@ -0,0 +1,441 @@
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE BangPatterns #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE DuplicateRecordFields #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE InstanceSigs #-}
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE StandaloneDeriving #-}
+{-# LANGUAGE TupleSections #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE TypeOperators #-}
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+
+module Simplex.Messaging.Server.QueueStore.Postgres
+  ( PostgresQueueStore (..),
+    PostgresStoreCfg (..),
+    batchInsertQueues,
+    foldQueueRecs,
+  )
+where
+
+import qualified Control.Exception as E
+import Control.Logger.Simple
+import Control.Monad
+import Control.Monad.Except
+import Control.Monad.IO.Class
+import Control.Monad.Trans.Except
+import Data.ByteString.Builder (Builder)
+import qualified Data.ByteString.Builder as BB
+import Data.ByteString.Char8 (ByteString)
+import qualified Data.ByteString.Char8 as B
+import qualified Data.ByteString.Lazy as LB
+import Data.Bitraversable (bimapM)
+import Data.Either (fromRight)
+import Data.Functor (($>))
+import Data.Int (Int64)
+import Data.List (intersperse)
+import qualified Data.Map.Strict as M
+import Data.Maybe (catMaybes)
+import qualified Data.Text as T
+import Data.Time.Clock.System (SystemTime (..), getSystemTime)
+import Database.PostgreSQL.Simple (Binary (..), Only (..), Query, SqlError)
+import qualified Database.PostgreSQL.Simple as DB
+import qualified Database.PostgreSQL.Simple.Copy as DB
+import Database.PostgreSQL.Simple.FromField (FromField (..))
+import Database.PostgreSQL.Simple.ToField (Action (..), ToField (..))
+import Database.PostgreSQL.Simple.Errors (ConstraintViolation (..), constraintViolation)
+import Database.PostgreSQL.Simple.SqlQQ (sql)
+import GHC.IO (catchAny)
+import Simplex.Messaging.Agent.Client (withLockMap)
+import Simplex.Messaging.Agent.Lock (Lock)
+import Simplex.Messaging.Agent.Store.Postgres (createDBStore, closeDBStore)
+import Simplex.Messaging.Agent.Store.Postgres.Common
+import Simplex.Messaging.Protocol
+import Simplex.Messaging.Server.QueueStore
+import Simplex.Messaging.Server.QueueStore.Postgres.Config
+import Simplex.Messaging.Server.QueueStore.Postgres.Migrations (serverMigrations)
+import Simplex.Messaging.Server.QueueStore.STM (readQueueRecIO)
+import Simplex.Messaging.Server.QueueStore.Types
+import Simplex.Messaging.Server.StoreLog
+import Simplex.Messaging.TMap (TMap)
+import qualified Simplex.Messaging.TMap as TM
+import Simplex.Messaging.Util (firstRow, ifM, tshow, (<$$>))
+import System.Exit (exitFailure)
+import System.IO (IOMode (..), hFlush, stdout)
+import UnliftIO.STM
+
+#if !defined(dbPostgres)
+import Simplex.Messaging.Agent.Store.Postgres.DB (blobFieldDecoder)
+import qualified Simplex.Messaging.Crypto as C
+import Simplex.Messaging.Encoding.String
+#endif
+
+data PostgresQueueStore q = PostgresQueueStore
+  { dbStore :: DBStore,
+    dbStoreLog :: Maybe (StoreLog 'WriteMode),
+    -- this map caches all created and opened queues
+    queues :: TMap RecipientId q,
+    -- this map only cashes the queues that were attempted to send messages to,
+    senders :: TMap SenderId RecipientId,
+    -- this map only cashes the queues that were attempted to be subscribed to,
+    notifiers :: TMap NotifierId RecipientId,
+    notifierLocks :: TMap NotifierId Lock,
+    deletedTTL :: Int64
+  }
+
+instance StoreQueueClass q => QueueStoreClass q (PostgresQueueStore q) where
+  type QueueStoreCfg (PostgresQueueStore q) = PostgresStoreCfg
+
+  newQueueStore :: PostgresStoreCfg  -> IO (PostgresQueueStore q)
+  newQueueStore PostgresStoreCfg {dbOpts, dbStoreLogPath, confirmMigrations, deletedTTL} = do
+    dbStore <- either err pure =<< createDBStore dbOpts serverMigrations confirmMigrations
+    dbStoreLog <- mapM (openWriteStoreLog True) dbStoreLogPath
+    queues <- TM.emptyIO
+    senders <- TM.emptyIO
+    notifiers <- TM.emptyIO
+    notifierLocks <- TM.emptyIO
+    pure PostgresQueueStore {dbStore, dbStoreLog, queues, senders, notifiers, notifierLocks, deletedTTL}
+    where
+      err e = do
+        logError $ "STORE: newQueueStore, error opening PostgreSQL database, " <> tshow e
+        exitFailure
+
+  closeQueueStore :: PostgresQueueStore q -> IO ()
+  closeQueueStore PostgresQueueStore {dbStore, dbStoreLog} = do
+    closeDBStore dbStore
+    mapM_ closeStoreLog dbStoreLog
+
+  loadedQueues = queues
+  {-# INLINE loadedQueues #-}
+
+  compactQueues :: PostgresQueueStore q -> IO Int64
+  compactQueues st@PostgresQueueStore {deletedTTL} = do
+    old <- subtract deletedTTL . systemSeconds <$> liftIO getSystemTime
+    fmap (fromRight 0) $ runExceptT $ withDB' "removeDeletedQueues" st $ \db ->
+      DB.execute db "DELETE FROM msg_queues WHERE deleted_at < ?" (Only old)
+
+  queueCounts :: PostgresQueueStore q -> IO QueueCounts
+  queueCounts st =
+    withConnection (dbStore st) $ \db -> do
+      (queueCount, notifierCount) : _ <-
+        DB.query_
+          db
+          [sql|
+            SELECT
+              (SELECT COUNT(1) FROM msg_queues WHERE deleted_at IS NULL) AS queue_count, 
+              (SELECT COUNT(1) FROM msg_queues WHERE deleted_at IS NULL AND notifier_id IS NOT NULL) AS notifier_count
+          |]
+      pure QueueCounts {queueCount, notifierCount}
+
+  -- this implementation assumes that the lock is already taken by addQueue
+  -- and relies on unique constraints in the database to prevent duplicate IDs.
+  addQueue_ :: PostgresQueueStore q -> (RecipientId -> QueueRec -> IO q) -> RecipientId -> QueueRec -> IO (Either ErrorType q)
+  addQueue_ st mkQ rId qr = do
+    sq <- mkQ rId qr
+    withQueueLock sq "addQueue_" $ E.uninterruptibleMask_ $ runExceptT $ do
+      void $ withDB "addQueue_" st $ \db ->
+        E.try (DB.execute db insertQueueQuery $ queueRecToRow (rId, qr))
+          >>= bimapM handleDuplicate pure
+      atomically $ TM.insert rId sq queues
+      atomically $ TM.insert (senderId qr) rId senders
+      withLog "addStoreQueue" st $ \s -> logCreateQueue s rId qr
+      pure sq
+    where
+      PostgresQueueStore {queues, senders} = st
+      -- Not doing duplicate checks in maps as the probability of duplicates is very low.
+      -- It needs to be reconsidered when IDs are supplied by the users.
+      -- hasId = anyM [TM.memberIO rId queues, TM.memberIO senderId senders, hasNotifier]
+      -- hasNotifier = maybe (pure False) (\NtfCreds {notifierId} -> TM.memberIO notifierId notifiers) notifier
+
+  getQueue_ :: DirectParty p => PostgresQueueStore q -> (RecipientId -> QueueRec -> IO q) -> SParty p -> QueueId -> IO (Either ErrorType q)
+  getQueue_ st mkQ party qId = case party of
+    SRecipient -> getRcvQueue qId
+    SSender -> TM.lookupIO qId senders >>= maybe loadSndQueue getRcvQueue
+    SNotifier -> TM.lookupIO qId notifiers >>= maybe loadNtfQueue getRcvQueue
+    where
+      PostgresQueueStore {queues, senders, notifiers} = st
+      getRcvQueue rId = TM.lookupIO rId queues >>= maybe loadRcvQueue (pure . Right)
+      loadRcvQueue = loadQueue " WHERE recipient_id = ?" $ \_ -> pure ()
+      loadSndQueue = loadQueue " WHERE sender_id = ?" $ \rId -> TM.insert qId rId senders
+      loadNtfQueue = loadQueue " WHERE notifier_id = ?" $ \_ -> pure () -- do NOT cache ref - ntf subscriptions are rare
+      loadQueue condition insertRef =
+        E.uninterruptibleMask_ $ runExceptT $ do
+          (rId, qRec) <-
+            withDB "getQueue_" st $ \db -> firstRow rowToQueueRec AUTH $
+              DB.query db (queueRecQuery <> condition <> " AND deleted_at IS NULL") (Only qId)
+          liftIO $ do
+            sq <- mkQ rId qRec -- loaded queue
+            -- This lock prevents the scenario when the queue is added to cache,
+            -- while another thread is proccessing the same queue in withAllMsgQueues
+            -- without adding it to cache, possibly trying to open the same files twice.
+            -- Alse see comment in idleDeleteExpiredMsgs.
+            withQueueLock sq "getQueue_" $ atomically $
+              -- checking the cache again for concurrent reads,
+              -- use previously loaded queue if exists.
+              TM.lookup rId queues >>= \case
+                Just sq' -> pure sq'
+                Nothing -> do
+                  insertRef rId
+                  TM.insert rId sq queues
+                  pure sq
+
+  secureQueue :: PostgresQueueStore q -> q -> SndPublicAuthKey -> IO (Either ErrorType ())
+  secureQueue st sq sKey =
+    withQueueRec sq "secureQueue" $ \q -> do
+      verify q
+      assertUpdated $ withDB' "secureQueue" st $ \db ->
+        DB.execute db "UPDATE msg_queues SET sender_key = ? WHERE recipient_id = ? AND deleted_at IS NULL" (sKey, rId)
+      atomically $ writeTVar (queueRec sq) $ Just q {senderKey = Just sKey}
+      withLog "secureQueue" st $ \s -> logSecureQueue s rId sKey
+    where
+      rId = recipientId sq
+      verify q = case senderKey q of
+        Just k | sKey /= k -> throwE AUTH
+        _ -> pure ()
+
+  addQueueNotifier :: PostgresQueueStore q -> q -> NtfCreds -> IO (Either ErrorType (Maybe NotifierId))
+  addQueueNotifier st sq ntfCreds@NtfCreds {notifierId = nId, notifierKey, rcvNtfDhSecret} =
+    withQueueRec sq "addQueueNotifier" $ \q ->
+      ExceptT $ withLockMap (notifierLocks st) nId "addQueueNotifier" $
+        ifM (TM.memberIO nId notifiers) (pure $ Left DUPLICATE_) $ runExceptT $ do
+          assertUpdated $ withDB "addQueueNotifier" st $ \db ->
+            E.try (update db) >>= bimapM handleDuplicate pure
+          nId_ <- forM (notifier q) $ \NtfCreds {notifierId} -> atomically (TM.delete notifierId notifiers) $> notifierId
+          let !q' = q {notifier = Just ntfCreds}
+          atomically $ writeTVar (queueRec sq) $ Just q'
+          -- cache queue notifier ID – after notifier is added ntf server will likely subscribe
+          atomically $ TM.insert nId rId notifiers
+          withLog "addQueueNotifier" st $ \s -> logAddNotifier s rId ntfCreds
+          pure nId_
+    where
+      PostgresQueueStore {notifiers} = st
+      rId = recipientId sq
+      update db =
+        DB.execute
+          db
+          [sql|
+            UPDATE msg_queues
+            SET notifier_id = ?, notifier_key = ?, rcv_ntf_dh_secret = ?
+            WHERE recipient_id = ? AND deleted_at IS NULL
+          |]
+          (nId, notifierKey, rcvNtfDhSecret, rId)
+
+  deleteQueueNotifier :: PostgresQueueStore q -> q -> IO (Either ErrorType (Maybe NotifierId))
+  deleteQueueNotifier st sq =
+    withQueueRec sq "deleteQueueNotifier" $ \q ->
+      ExceptT $ fmap sequence $ forM (notifier q) $ \NtfCreds {notifierId = nId} ->
+        withLockMap (notifierLocks st) nId "deleteQueueNotifier" $ runExceptT $ do
+          assertUpdated $ withDB' "deleteQueueNotifier" st update
+          atomically $ TM.delete nId $ notifiers st
+          atomically $ writeTVar (queueRec sq) $ Just q {notifier = Nothing}
+          withLog "deleteQueueNotifier" st (`logDeleteNotifier` rId)
+          pure nId
+    where
+      rId = recipientId sq
+      update db =
+        DB.execute
+          db
+          [sql|
+            UPDATE msg_queues
+            SET notifier_id = NULL, notifier_key = NULL, rcv_ntf_dh_secret = NULL
+            WHERE recipient_id = ? AND deleted_at IS NULL
+          |]
+          (Only rId)
+
+  suspendQueue :: PostgresQueueStore q -> q -> IO (Either ErrorType ())
+  suspendQueue st sq =
+    setStatusDB "suspendQueue" st sq EntityOff $
+      withLog "suspendQueue" st (`logSuspendQueue` recipientId sq)
+
+  blockQueue :: PostgresQueueStore q -> q -> BlockingInfo -> IO (Either ErrorType ())
+  blockQueue st sq info =
+    setStatusDB "blockQueue" st sq (EntityBlocked info) $
+      withLog "blockQueue" st $ \sl -> logBlockQueue sl (recipientId sq) info
+
+  unblockQueue :: PostgresQueueStore q -> q -> IO (Either ErrorType ())
+  unblockQueue st sq =
+    setStatusDB "unblockQueue" st sq EntityActive $
+      withLog "unblockQueue" st (`logUnblockQueue` recipientId sq)
+  
+  updateQueueTime :: PostgresQueueStore q -> q -> RoundedSystemTime -> IO (Either ErrorType QueueRec)
+  updateQueueTime st sq t =
+    withQueueRec sq "updateQueueTime" $ \q@QueueRec {updatedAt} ->
+      if updatedAt == Just t
+        then pure q
+        else do
+          assertUpdated $ withDB' "updateQueueTime" st $ \db ->
+            DB.execute db "UPDATE msg_queues SET updated_at = ? WHERE recipient_id = ? AND deleted_at IS NULL" (t, rId)
+          let !q' = q {updatedAt = Just t}
+          atomically $ writeTVar (queueRec sq) $ Just q'
+          withLog "updateQueueTime" st $ \sl -> logUpdateQueueTime sl rId t
+          pure q'
+    where
+      rId = recipientId sq
+
+  -- this method is called from JournalMsgStore deleteQueue that already locks the queue
+  deleteStoreQueue :: PostgresQueueStore q -> q -> IO (Either ErrorType (QueueRec, Maybe (MsgQueue q)))
+  deleteStoreQueue st sq = E.uninterruptibleMask_ $ runExceptT $ do
+    q <- ExceptT $ readQueueRecIO qr
+    RoundedSystemTime ts <- liftIO getSystemDate
+    assertUpdated $ withDB' "deleteStoreQueue" st $ \db ->
+      DB.execute db "UPDATE msg_queues SET deleted_at = ? WHERE recipient_id = ? AND deleted_at IS NULL" (ts, rId)
+    atomically $ writeTVar qr Nothing
+    atomically $ TM.delete (senderId q) $ senders st
+    forM_ (notifier q) $ \NtfCreds {notifierId} -> atomically $ TM.delete notifierId $ notifiers st
+    mq_ <- atomically $ swapTVar (msgQueue sq) Nothing
+    withLog "deleteStoreQueue" st (`logDeleteQueue` rId)
+    pure (q, mq_)
+    where
+      rId = recipientId sq
+      qr = queueRec sq
+
+batchInsertQueues :: StoreQueueClass q => Bool -> M.Map RecipientId q -> PostgresQueueStore q' -> IO Int64
+batchInsertQueues tty queues toStore = do
+  qs <- catMaybes <$> mapM (\(rId, q) -> (rId,) <$$> readTVarIO (queueRec q)) (M.assocs queues)
+  putStrLn $ "Importing " <> show (length qs) <> " queues..."
+  let st = dbStore toStore
+  count <-
+    withConnection st $ \db -> do
+      DB.copy_ db "COPY msg_queues (recipient_id, recipient_key, rcv_dh_secret, sender_id, sender_key, snd_secure, notifier_id, notifier_key, rcv_ntf_dh_secret, status, updated_at) FROM STDIN WITH (FORMAT CSV)"
+      mapM_ (putQueue db) (zip [1..] qs)
+      DB.putCopyEnd db
+  Only qCnt : _ <- withConnection st (`DB.query_` "SELECT count(*) FROM msg_queues")
+  putStrLn $ progress count
+  pure qCnt
+  where
+    putQueue db (i :: Int, q) = do
+      DB.putCopyData db $ queueRecToText q
+      when (tty && i `mod` 100000 == 0) $ putStr (progress i <> "\r") >> hFlush stdout
+    progress i = "Imported: " <> show i <> " queues"
+
+insertQueueQuery :: Query
+insertQueueQuery =
+  [sql|
+    INSERT INTO msg_queues
+      (recipient_id, recipient_key, rcv_dh_secret, sender_id, sender_key, snd_secure, notifier_id, notifier_key, rcv_ntf_dh_secret, status, updated_at)
+    VALUES (?,?,?,?,?,?,?,?,?,?,?)
+  |]
+
+foldQueueRecs :: Monoid a => Bool -> PostgresQueueStore q -> ((RecipientId, QueueRec) -> IO a) -> IO a
+foldQueueRecs tty st f = do
+  (n, r) <- withConnection (dbStore st) $ \db ->
+    DB.fold_ db (queueRecQuery <> " WHERE deleted_at IS NULL") (0 :: Int, mempty) $ \(i, acc) row -> do
+      r <- f $ rowToQueueRec row
+      let !i' = i + 1
+          !acc' = acc <> r
+      when (tty && i' `mod` 100000 == 0) $ putStr (progress i' <> "\r") >> hFlush stdout
+      pure (i', acc')
+  when tty $ putStrLn $ progress n
+  pure r
+  where
+    progress i = "Processed: " <> show i <> " records"
+
+queueRecQuery :: Query
+queueRecQuery =
+  [sql|
+    SELECT recipient_id, recipient_key, rcv_dh_secret,
+      sender_id, sender_key, snd_secure,
+      notifier_id, notifier_key, rcv_ntf_dh_secret,
+      status, updated_at
+    FROM msg_queues
+  |]
+
+type QueueRecRow = (RecipientId, RcvPublicAuthKey, RcvDhSecret, SenderId, Maybe SndPublicAuthKey, SenderCanSecure, Maybe NotifierId, Maybe NtfPublicAuthKey, Maybe RcvNtfDhSecret, ServerEntityStatus, Maybe RoundedSystemTime)
+
+queueRecToRow :: (RecipientId, QueueRec) -> QueueRecRow
+queueRecToRow (rId, QueueRec {recipientKey, rcvDhSecret, senderId, senderKey, sndSecure, notifier = n, status, updatedAt}) =
+  (rId, recipientKey, rcvDhSecret, senderId, senderKey, sndSecure, notifierId <$> n, notifierKey <$> n, rcvNtfDhSecret <$> n, status, updatedAt)
+
+queueRecToText :: (RecipientId, QueueRec) -> ByteString
+queueRecToText (rId, QueueRec {recipientKey, rcvDhSecret, senderId, senderKey, sndSecure, notifier = n, status, updatedAt}) =
+  LB.toStrict $ BB.toLazyByteString $ mconcat tabFields <> BB.char7 '\n'
+  where
+    tabFields = BB.char7 ',' `intersperse` fields
+    fields =
+      [ renderField (toField rId),
+        renderField (toField recipientKey),
+        renderField (toField rcvDhSecret),
+        renderField (toField senderId),
+        nullable senderKey,
+        renderField (toField sndSecure),
+        nullable (notifierId <$> n),
+        nullable (notifierKey <$> n),
+        nullable (rcvNtfDhSecret <$> n),
+        BB.char7 '"' <> renderField (toField status) <> BB.char7 '"',
+        nullable updatedAt
+      ]
+    nullable :: ToField a => Maybe a -> Builder
+    nullable = maybe mempty (renderField . toField)
+    renderField :: Action -> Builder
+    renderField = \case
+      Plain bld -> bld
+      Escape s -> BB.byteString s
+      EscapeByteA s -> BB.string7 "\\x" <> BB.byteStringHex s
+      EscapeIdentifier s -> BB.byteString s -- Not used in COPY data
+      Many as -> mconcat (map renderField as)
+
+rowToQueueRec :: QueueRecRow -> (RecipientId, QueueRec)
+rowToQueueRec (rId, recipientKey, rcvDhSecret, senderId, senderKey, sndSecure, notifierId_, notifierKey_, rcvNtfDhSecret_, status, updatedAt) =
+  let notifier = NtfCreds <$> notifierId_ <*> notifierKey_ <*> rcvNtfDhSecret_
+   in (rId, QueueRec {recipientKey, rcvDhSecret, senderId, senderKey, sndSecure, notifier, status, updatedAt})
+
+setStatusDB :: StoreQueueClass q => String -> PostgresQueueStore q -> q -> ServerEntityStatus -> ExceptT ErrorType IO () -> IO (Either ErrorType ())
+setStatusDB op st sq status writeLog =
+  withQueueRec sq op $ \q -> do
+    assertUpdated $ withDB' op st $ \db ->
+      DB.execute db "UPDATE msg_queues SET status = ? WHERE recipient_id = ? AND deleted_at IS NULL" (status, recipientId sq)
+    atomically $ writeTVar (queueRec sq) $ Just q {status}
+    writeLog
+
+withQueueRec :: StoreQueueClass q => q -> String -> (QueueRec -> ExceptT ErrorType IO a) -> IO (Either ErrorType a)
+withQueueRec sq op action =
+  withQueueLock sq op $ E.uninterruptibleMask_ $ runExceptT $ ExceptT (readQueueRecIO $ queueRec sq) >>= action
+
+assertUpdated :: ExceptT ErrorType IO Int64 -> ExceptT ErrorType IO ()
+assertUpdated = (>>= \n -> when (n == 0) (throwE AUTH))
+
+withDB' :: String -> PostgresQueueStore q -> (DB.Connection -> IO a) -> ExceptT ErrorType IO a
+withDB' op st action = withDB op st $ fmap Right . action
+
+withDB :: forall a q. String -> PostgresQueueStore q -> (DB.Connection -> IO (Either ErrorType a)) -> ExceptT ErrorType IO a
+withDB op st action =
+  ExceptT $ E.try (withConnection (dbStore st) action) >>= either logErr pure
+  where
+    logErr :: E.SomeException -> IO (Either ErrorType a)
+    logErr e = logError ("STORE: " <> T.pack err) $> Left (STORE err)
+      where
+        err = op <> ", withDB, " <> show e
+
+withLog :: MonadIO m => String -> PostgresQueueStore q -> (StoreLog 'WriteMode -> IO ()) -> m ()
+withLog op PostgresQueueStore {dbStoreLog} action =
+  forM_ dbStoreLog $ \sl -> liftIO $ action sl `catchAny` \e ->
+    logWarn $ "STORE: " <> T.pack (op <> ", withLog, " <> show e)
+
+handleDuplicate :: SqlError -> IO ErrorType
+handleDuplicate e = case constraintViolation e of
+  Just (UniqueViolation _) -> pure AUTH
+  _ -> E.throwIO e
+
+-- The orphan instances below are copy-pasted, but here they are defined specifically for PostgreSQL
+
+instance ToField EntityId where toField (EntityId s) = toField $ Binary s
+
+deriving newtype instance FromField EntityId
+
+#if !defined(dbPostgres)
+instance ToField (C.DhSecret 'C.X25519) where toField = toField . Binary . C.dhBytes'
+
+instance FromField (C.DhSecret 'C.X25519) where fromField = blobFieldDecoder strDecode
+
+instance ToField C.APublicAuthKey where toField = toField . Binary . C.encodePubKey
+
+instance FromField C.APublicAuthKey where fromField = blobFieldDecoder C.decodePubKey
+#endif
diff --git a/src/Simplex/Messaging/Server/QueueStore/Postgres/Config.hs b/src/Simplex/Messaging/Server/QueueStore/Postgres/Config.hs
new file mode 100644
index 000000000..55b740220
--- /dev/null
+++ b/src/Simplex/Messaging/Server/QueueStore/Postgres/Config.hs
@@ -0,0 +1,12 @@
+module Simplex.Messaging.Server.QueueStore.Postgres.Config where
+
+import Data.Int (Int64)
+import Simplex.Messaging.Agent.Store.Postgres.Options (DBOpts)
+import Simplex.Messaging.Agent.Store.Shared (MigrationConfirmation)
+
+data PostgresStoreCfg = PostgresStoreCfg
+  { dbOpts :: DBOpts,
+    dbStoreLogPath :: Maybe FilePath,
+    confirmMigrations :: MigrationConfirmation,
+    deletedTTL :: Int64
+  }
diff --git a/src/Simplex/Messaging/Server/QueueStore/Postgres/Migrations.hs b/src/Simplex/Messaging/Server/QueueStore/Postgres/Migrations.hs
new file mode 100644
index 000000000..03b6fecf6
--- /dev/null
+++ b/src/Simplex/Messaging/Server/QueueStore/Postgres/Migrations.hs
@@ -0,0 +1,46 @@
+{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE QuasiQuotes #-}
+
+module Simplex.Messaging.Server.QueueStore.Postgres.Migrations where
+
+import Data.List (sortOn)
+import Data.Text (Text)
+import qualified Data.Text as T
+import Simplex.Messaging.Agent.Store.Shared
+import Text.RawString.QQ (r)
+
+serverSchemaMigrations :: [(String, Text, Maybe Text)]
+serverSchemaMigrations =
+  [ ("20250207_initial", m20250207_initial, Nothing)
+  ]
+
+-- | The list of migrations in ascending order by date
+serverMigrations :: [Migration]
+serverMigrations = sortOn name $ map migration serverSchemaMigrations
+  where
+    migration (name, up, down) = Migration {name, up, down = down}
+
+m20250207_initial :: Text
+m20250207_initial =
+  T.pack
+    [r|
+CREATE TABLE msg_queues(
+  recipient_id BYTEA NOT NULL,
+  recipient_key BYTEA NOT NULL,
+  rcv_dh_secret BYTEA NOT NULL,
+  sender_id BYTEA NOT NULL,
+  sender_key BYTEA,
+  snd_secure BOOLEAN NOT NULL,
+  notifier_id BYTEA,
+  notifier_key BYTEA,
+  rcv_ntf_dh_secret BYTEA,
+  status TEXT NOT NULL,
+  updated_at BIGINT,
+  deleted_at BIGINT,
+  PRIMARY KEY (recipient_id)
+);
+
+CREATE UNIQUE INDEX idx_msg_queues_sender_id ON msg_queues(sender_id);
+CREATE UNIQUE INDEX idx_msg_queues_notifier_id ON msg_queues(notifier_id);
+CREATE INDEX idx_msg_queues_deleted_at ON msg_queues (deleted_at);
+    |]
diff --git a/src/Simplex/Messaging/Server/QueueStore/STM.hs b/src/Simplex/Messaging/Server/QueueStore/STM.hs
index 2fd3e9912..8a360c3a0 100644
--- a/src/Simplex/Messaging/Server/QueueStore/STM.hs
+++ b/src/Simplex/Messaging/Server/QueueStore/STM.hs
@@ -3,7 +3,7 @@
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE GADTs #-}
-{-# LANGUAGE KindSignatures #-}
+{-# LANGUAGE InstanceSigs #-}
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE NamedFieldPuns #-}
@@ -11,222 +11,202 @@
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TupleSections #-}
+{-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE UndecidableInstances #-}
 
 module Simplex.Messaging.Server.QueueStore.STM
-  ( addQueue,
-    getQueue,
-    getQueueRec,
-    secureQueue,
-    addQueueNotifier,
-    deleteQueueNotifier,
-    suspendQueue,
-    blockQueue,
-    unblockQueue,
-    updateQueueTime,
-    deleteQueue',
-    newQueueStore,
-    readQueueStore,
+  ( STMQueueStore (..),
+    setStoreLog,
     withLog',
+    readQueueRecIO,
+    setStatus,
   )
 where
 
 import qualified Control.Exception as E
 import Control.Logger.Simple
 import Control.Monad
-import Control.Monad.IO.Class
-import Control.Monad.Trans.Except
 import Data.Bitraversable (bimapM)
-import qualified Data.ByteString.Char8 as B
 import Data.Functor (($>))
+import qualified Data.Map.Strict as M
 import qualified Data.Text as T
-import Data.Text.Encoding (decodeLatin1)
-import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Protocol
-import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.QueueStore
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.Server.StoreLog
+import Simplex.Messaging.TMap (TMap)
 import qualified Simplex.Messaging.TMap as TM
-import Simplex.Messaging.Util (ifM, safeDecodeUtf8, tshow, ($>>=), (<$$))
-import System.Exit (exitFailure)
+import Simplex.Messaging.Util (anyM, ifM, ($>>), ($>>=), (<$$))
 import System.IO
 import UnliftIO.STM
 
-newQueueStore :: IO (STMQueueStore q)
-newQueueStore = do
-  queues <- TM.emptyIO
-  senders <- TM.emptyIO
-  notifiers <- TM.emptyIO
-  storeLog <- newTVarIO Nothing
-  pure STMQueueStore {queues, senders, notifiers, storeLog}
+data STMQueueStore q = STMQueueStore
+  { queues :: TMap RecipientId q,
+    senders :: TMap SenderId RecipientId,
+    notifiers :: TMap NotifierId RecipientId,
+    storeLog :: TVar (Maybe (StoreLog 'WriteMode))
+  }
 
-addQueue :: STMStoreClass s => s -> RecipientId -> QueueRec -> IO (Either ErrorType (StoreQueue s))
-addQueue st rId qr@QueueRec {senderId = sId, notifier}=
-  atomically add
-    $>>= \q -> q <$$ withLog "addQueue" st (\s -> logCreateQueue s rId qr)
-  where
-    STMQueueStore {queues, senders, notifiers} = stmQueueStore st
-    add = ifM hasId (pure $ Left DUPLICATE_) $ do
-      q <- mkQueue st rId qr
-      TM.insert rId q queues
-      TM.insert sId rId senders
-      forM_ notifier $ \NtfCreds {notifierId} -> TM.insert notifierId rId notifiers
-      pure $ Right q
-    hasId = or <$> sequence [TM.member rId queues, TM.member sId senders, hasNotifier]
-    hasNotifier = maybe (pure False) (\NtfCreds {notifierId} -> TM.member notifierId notifiers) notifier
+setStoreLog :: STMQueueStore q -> StoreLog 'WriteMode -> IO ()
+setStoreLog st sl = atomically $ writeTVar (storeLog st) (Just sl)
 
-getQueue :: (STMStoreClass s, DirectParty p) => s -> SParty p -> QueueId -> IO (Either ErrorType (StoreQueue s))
-getQueue st party qId =
-  maybe (Left AUTH) Right <$> case party of
-    SRecipient -> TM.lookupIO qId queues
-    SSender -> TM.lookupIO qId senders $>>= (`TM.lookupIO` queues)
-    SNotifier -> TM.lookupIO qId notifiers $>>= (`TM.lookupIO` queues)
-  where
-    STMQueueStore {queues, senders, notifiers} = stmQueueStore st
+instance StoreQueueClass q => QueueStoreClass q (STMQueueStore q) where
+  type QueueStoreCfg (STMQueueStore q) = ()
 
-getQueueRec :: (STMStoreClass s, DirectParty p) => s -> SParty p -> QueueId -> IO (Either ErrorType (StoreQueue s, QueueRec))
-getQueueRec st party qId =
-  getQueue st party qId
-    $>>= (\q -> maybe (Left AUTH) (Right . (q,)) <$> readTVarIO (queueRec' q))
+  newQueueStore :: () -> IO (STMQueueStore q)
+  newQueueStore _ = do
+    queues <- TM.emptyIO
+    senders <- TM.emptyIO
+    notifiers <- TM.emptyIO
+    storeLog <- newTVarIO Nothing
+    pure STMQueueStore {queues, senders, notifiers, storeLog}
 
-secureQueue :: STMStoreClass s => s -> StoreQueue s -> SndPublicAuthKey -> IO (Either ErrorType ())
-secureQueue st sq sKey =
-  atomically (readQueueRec qr $>>= secure)
-    $>>= \_ -> withLog "secureQueue" st $ \s -> logSecureQueue s (recipientId' sq) sKey
-  where
-    qr = queueRec' sq
-    secure q = case senderKey q of
-      Just k -> pure $ if sKey == k then Right () else Left AUTH
-      Nothing -> do
-        writeTVar qr $ Just q {senderKey = Just sKey}
-        pure $ Right ()
+  closeQueueStore :: STMQueueStore q -> IO ()
+  closeQueueStore STMQueueStore {queues, senders, notifiers, storeLog} = do
+    readTVarIO storeLog >>= mapM_ closeStoreLog
+    atomically $ TM.clear queues
+    atomically $ TM.clear senders
+    atomically $ TM.clear notifiers
 
-addQueueNotifier :: STMStoreClass s => s -> StoreQueue s -> NtfCreds -> IO (Either ErrorType (Maybe NotifierId))
-addQueueNotifier st sq ntfCreds@NtfCreds {notifierId = nId} =
-  atomically (readQueueRec qr $>>= add)
-    $>>= \nId_ -> nId_ <$$ withLog "addQueueNotifier" st (\s -> logAddNotifier s rId ntfCreds)
-  where
-    rId = recipientId' sq
-    qr = queueRec' sq
-    STMQueueStore {notifiers} = stmQueueStore st
-    add q = ifM (TM.member nId notifiers) (pure $ Left DUPLICATE_) $ do
-      nId_ <- forM (notifier q) $ \NtfCreds {notifierId} -> TM.delete notifierId notifiers $> notifierId
-      let !q' = q {notifier = Just ntfCreds}
-      writeTVar qr $ Just q'
-      TM.insert nId rId notifiers
-      pure $ Right nId_
+  loadedQueues = queues
+  {-# INLINE loadedQueues #-}
+  compactQueues _ = pure 0
+  {-# INLINE compactQueues #-}
 
-deleteQueueNotifier :: STMStoreClass s => s -> StoreQueue s -> IO (Either ErrorType (Maybe NotifierId))
-deleteQueueNotifier st sq =
-  atomically (readQueueRec qr >>= mapM delete)
-    $>>= \nId_ -> nId_ <$$ withLog "deleteQueueNotifier" st (`logDeleteNotifier` recipientId' sq)
-  where
-    qr = queueRec' sq
-    delete q = forM (notifier q) $ \NtfCreds {notifierId} -> do
-      TM.delete notifierId $ notifiers $ stmQueueStore st
-      writeTVar qr $! Just q {notifier = Nothing}
-      pure notifierId
+  queueCounts :: STMQueueStore q -> IO QueueCounts
+  queueCounts st = do
+    queueCount <- M.size <$> readTVarIO (queues st)
+    notifierCount <- M.size <$> readTVarIO (notifiers st)
+    pure QueueCounts {queueCount, notifierCount}
 
-suspendQueue :: STMStoreClass s => s -> StoreQueue s -> IO (Either ErrorType ())
-suspendQueue st sq =
-  atomically (readQueueRec qr >>= mapM suspend)
-    $>>= \_ -> withLog "suspendQueue" st (`logSuspendQueue` recipientId' sq)
-  where
-    qr = queueRec' sq
-    suspend q = writeTVar qr $! Just q {status = EntityOff}
+  addQueue_ :: STMQueueStore q -> (RecipientId -> QueueRec -> IO q) -> RecipientId -> QueueRec -> IO (Either ErrorType q)
+  addQueue_ st mkQ rId qr@QueueRec {senderId = sId, notifier} = do
+    sq <- mkQ rId qr
+    add sq $>> withLog "addStoreQueue" st (\s -> logCreateQueue s rId qr) $> Right sq
+    where
+      STMQueueStore {queues, senders, notifiers} = st
+      add q = atomically $ ifM hasId (pure $ Left DUPLICATE_) $ Right () <$ do
+        TM.insert rId q queues
+        TM.insert sId rId senders
+        forM_ notifier $ \NtfCreds {notifierId} -> TM.insert notifierId rId notifiers
+      hasId = anyM [TM.member rId queues, TM.member sId senders, hasNotifier]
+      hasNotifier = maybe (pure False) (\NtfCreds {notifierId} -> TM.member notifierId notifiers) notifier
 
-blockQueue :: STMStoreClass s => s -> StoreQueue s -> BlockingInfo -> IO (Either ErrorType ())
-blockQueue st sq info =
-  atomically (readQueueRec qr >>= mapM block)
-    $>>= \_ -> withLog "blockQueue" st (\sl -> logBlockQueue sl (recipientId' sq) info)
-  where
-    qr = queueRec' sq
-    block q = writeTVar qr $ Just q {status = EntityBlocked info}
+  getQueue_ :: DirectParty p => STMQueueStore q -> (RecipientId -> QueueRec -> IO q) -> SParty p -> QueueId -> IO (Either ErrorType q)
+  getQueue_ st _ party qId =
+    maybe (Left AUTH) Right <$> case party of
+      SRecipient -> TM.lookupIO qId queues
+      SSender -> TM.lookupIO qId senders $>>= (`TM.lookupIO` queues)
+      SNotifier -> TM.lookupIO qId notifiers $>>= (`TM.lookupIO` queues)
+    where
+      STMQueueStore {queues, senders, notifiers} = st
 
-unblockQueue :: STMStoreClass s => s -> StoreQueue s -> IO (Either ErrorType ())
-unblockQueue st sq =
-  atomically (readQueueRec qr >>= mapM unblock)
-    $>>= \_ -> withLog "unblockQueue" st (`logUnblockQueue` recipientId' sq)
-  where
-    qr = queueRec' sq
-    unblock q = writeTVar qr $ Just q {status = EntityActive}
+  secureQueue :: STMQueueStore q -> q -> SndPublicAuthKey -> IO (Either ErrorType ())
+  secureQueue st sq sKey =
+    atomically (readQueueRec qr $>>= secure)
+      $>> withLog "secureQueue" st (\s -> logSecureQueue s (recipientId sq) sKey)
+    where
+      qr = queueRec sq
+      secure q = case senderKey q of
+        Just k -> pure $ if sKey == k then Right () else Left AUTH
+        Nothing -> do
+          writeTVar qr $ Just q {senderKey = Just sKey}
+          pure $ Right ()
 
-updateQueueTime :: STMStoreClass s => s -> StoreQueue s -> RoundedSystemTime -> IO (Either ErrorType QueueRec)
-updateQueueTime st sq t = atomically (readQueueRec qr >>= mapM update) $>>= log'
-  where
-    qr = queueRec' sq
-    update q@QueueRec {updatedAt}
-      | updatedAt == Just t = pure (q, False)
-      | otherwise =
-          let !q' = q {updatedAt = Just t}
-           in (writeTVar qr $! Just q') $> (q', True)
-    log' (q, changed)
-      | changed = q <$$ withLog "updateQueueTime" st (\sl -> logUpdateQueueTime sl (recipientId' sq) t)
-      | otherwise = pure $ Right q
+  addQueueNotifier :: STMQueueStore q -> q -> NtfCreds -> IO (Either ErrorType (Maybe NotifierId))
+  addQueueNotifier st sq ntfCreds@NtfCreds {notifierId = nId} =
+    atomically (readQueueRec qr $>>= add)
+      $>>= \nId_ -> nId_ <$$ withLog "addQueueNotifier" st (\s -> logAddNotifier s rId ntfCreds)
+    where
+      rId = recipientId sq
+      qr = queueRec sq
+      STMQueueStore {notifiers} = st
+      add q = ifM (TM.member nId notifiers) (pure $ Left DUPLICATE_) $ do
+        nId_ <- forM (notifier q) $ \NtfCreds {notifierId} -> TM.delete notifierId notifiers $> notifierId
+        let !q' = q {notifier = Just ntfCreds}
+        writeTVar qr $ Just q'
+        TM.insert nId rId notifiers
+        pure $ Right nId_
 
-deleteQueue' :: STMStoreClass s => s -> StoreQueue s -> IO (Either ErrorType (QueueRec, Maybe (MsgQueue s)))
-deleteQueue' st sq =
-  atomically (readQueueRec qr >>= mapM delete)
-    $>>= \q -> withLog "deleteQueue" st (`logDeleteQueue` recipientId' sq)
-    >>= bimapM pure (\_ -> (q,) <$> atomically (swapTVar (msgQueue_' sq) Nothing))
-  where
-    qr = queueRec' sq
-    STMQueueStore {senders, notifiers} = stmQueueStore st
-    delete q = do
-      writeTVar qr Nothing
-      TM.delete (senderId q) senders
-      forM_ (notifier q) $ \NtfCreds {notifierId} -> TM.delete notifierId notifiers
-      pure q
+  deleteQueueNotifier :: STMQueueStore q -> q -> IO (Either ErrorType (Maybe NotifierId))
+  deleteQueueNotifier st sq =
+    withQueueRec qr delete
+      $>>= \nId_ -> nId_ <$$ withLog "deleteQueueNotifier" st (`logDeleteNotifier` recipientId sq)
+    where
+      qr = queueRec sq
+      delete q = forM (notifier q) $ \NtfCreds {notifierId} -> do
+        TM.delete notifierId $ notifiers st
+        writeTVar qr $ Just q {notifier = Nothing}
+        pure notifierId
+
+  suspendQueue :: STMQueueStore q -> q -> IO (Either ErrorType ())
+  suspendQueue st sq =
+    setStatus (queueRec sq) EntityOff
+      $>> withLog "suspendQueue" st (`logSuspendQueue` recipientId sq)
+
+  blockQueue :: STMQueueStore q -> q -> BlockingInfo -> IO (Either ErrorType ())
+  blockQueue st sq info =
+    setStatus (queueRec sq) (EntityBlocked info)
+      $>> withLog "blockQueue" st (\sl -> logBlockQueue sl (recipientId sq) info)
+
+  unblockQueue :: STMQueueStore q -> q -> IO (Either ErrorType ())
+  unblockQueue st sq =
+    setStatus (queueRec sq) EntityActive
+      $>> withLog "unblockQueue" st (`logUnblockQueue` recipientId sq)
+
+  updateQueueTime :: STMQueueStore q -> q -> RoundedSystemTime -> IO (Either ErrorType QueueRec)
+  updateQueueTime st sq t = withQueueRec qr update $>>= log'
+    where
+      qr = queueRec sq
+      update q@QueueRec {updatedAt}
+        | updatedAt == Just t = pure (q, False)
+        | otherwise =
+            let !q' = q {updatedAt = Just t}
+             in writeTVar qr (Just q') $> (q', True)
+      log' (q, changed)
+        | changed = q <$$ withLog "updateQueueTime" st (\sl -> logUpdateQueueTime sl (recipientId sq) t)
+        | otherwise = pure $ Right q
+
+  deleteStoreQueue :: STMQueueStore q -> q -> IO (Either ErrorType (QueueRec, Maybe (MsgQueue q)))
+  deleteStoreQueue st sq =
+    withQueueRec qr delete
+      $>>= \q -> withLog "deleteStoreQueue" st (`logDeleteQueue` recipientId sq)
+      >>= mapM (\_ -> (q,) <$> atomically (swapTVar (msgQueue sq) Nothing))
+    where
+      qr = queueRec sq
+      delete q = do
+        writeTVar qr Nothing
+        TM.delete (senderId q) $ senders st
+        forM_ (notifier q) $ \NtfCreds {notifierId} -> TM.delete notifierId $ notifiers st
+        pure q
+
+withQueueRec :: TVar (Maybe QueueRec) -> (QueueRec -> STM a) -> IO (Either ErrorType a)
+withQueueRec qr a = atomically $ readQueueRec qr >>= mapM a
+
+setStatus :: TVar (Maybe QueueRec) -> ServerEntityStatus -> IO (Either ErrorType ())
+setStatus qr status =
+  atomically $ stateTVar qr $ \case
+    Just q -> (Right (), Just q {status})
+    Nothing -> (Left AUTH, Nothing)
 
 readQueueRec :: TVar (Maybe QueueRec) -> STM (Either ErrorType QueueRec)
 readQueueRec qr = maybe (Left AUTH) Right <$> readTVar qr
 {-# INLINE readQueueRec #-}
 
+readQueueRecIO :: TVar (Maybe QueueRec) -> IO (Either ErrorType QueueRec)
+readQueueRecIO qr = maybe (Left AUTH) Right <$> readTVarIO qr
+{-# INLINE readQueueRecIO #-}
+
 withLog' :: String -> TVar (Maybe (StoreLog 'WriteMode)) -> (StoreLog 'WriteMode -> IO ()) -> IO (Either ErrorType ())
 withLog' name sl action =
   readTVarIO sl
-    >>= maybe (pure $ Right ()) (E.try . action >=> bimapM logErr pure)
+    >>= maybe (pure $ Right ()) (E.try . E.uninterruptibleMask_ . action >=> bimapM logErr pure)
   where
     logErr :: E.SomeException -> IO ErrorType
     logErr e = logError ("STORE: " <> T.pack err) $> STORE err
       where
         err = name <> ", withLog, " <> show e
 
-withLog :: STMStoreClass s => String -> s -> (StoreLog 'WriteMode -> IO ()) -> IO (Either ErrorType ())
-withLog name = withLog' name . storeLog . stmQueueStore
-
-readQueueStore :: forall s. STMStoreClass s => FilePath -> s -> IO ()
-readQueueStore f st = readLogLines False f processLine
-  where
-    processLine :: Bool -> B.ByteString -> IO ()
-    processLine eof s = either printError procLogRecord (strDecode s)
-      where
-        procLogRecord :: StoreLogRecord -> IO ()
-        procLogRecord = \case
-          CreateQueue rId q -> addQueue st rId q >>= qError rId "CreateQueue"
-          SecureQueue qId sKey -> withQueue qId "SecureQueue" $ \q -> secureQueue st q sKey
-          AddNotifier qId ntfCreds -> withQueue qId "AddNotifier" $ \q -> addQueueNotifier st q ntfCreds
-          SuspendQueue qId -> withQueue qId "SuspendQueue" $ suspendQueue st
-          BlockQueue qId info -> withQueue qId "BlockQueue" $ \q -> blockQueue st q info
-          UnblockQueue qId -> withQueue qId "UnblockQueue" $ unblockQueue st
-          DeleteQueue qId -> withQueue qId "DeleteQueue" $ deleteQueue st
-          DeleteNotifier qId -> withQueue qId "DeleteNotifier" $ deleteQueueNotifier st
-          UpdateTime qId t -> withQueue qId "UpdateTime" $ \q -> updateQueueTime st q t
-        printError :: String -> IO ()
-        printError e
-          | eof = logWarn err
-          | otherwise = logError err >> exitFailure
-          where
-            err = "Error parsing log: " <> T.pack e <> " - " <> safeDecodeUtf8 s
-        withQueue :: forall a. RecipientId -> T.Text -> (StoreQueue s -> IO (Either ErrorType a)) -> IO ()
-        withQueue qId op a = runExceptT go >>= qError qId op
-          where
-            go = do
-              q <- ExceptT $ getQueue st SRecipient qId
-              liftIO (readTVarIO $ queueRec' q) >>= \case
-                Nothing -> logWarn $ logPfx qId op <> "already deleted"
-                Just _ -> void $ ExceptT $ a q
-        qError qId op = \case
-          Left e -> logError $ logPfx qId op <> tshow e
-          Right _ -> pure ()
-        logPfx qId op = "STORE: " <> op <> ", stored queue " <> decodeLatin1 (strEncode qId) <> ", "
+withLog :: String -> STMQueueStore q -> (StoreLog 'WriteMode -> IO ()) -> IO (Either ErrorType ())
+withLog name = withLog' name . storeLog
+{-# INLINE withLog #-}
diff --git a/src/Simplex/Messaging/Server/QueueStore/Types.hs b/src/Simplex/Messaging/Server/QueueStore/Types.hs
new file mode 100644
index 000000000..8af65a335
--- /dev/null
+++ b/src/Simplex/Messaging/Server/QueueStore/Types.hs
@@ -0,0 +1,50 @@
+{-# LANGUAGE AllowAmbiguousTypes #-}
+{-# LANGUAGE BangPatterns #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE TypeFamilyDependencies #-}
+
+module Simplex.Messaging.Server.QueueStore.Types where
+
+import Control.Concurrent.STM
+import Control.Monad
+import Data.Int (Int64)
+import Simplex.Messaging.Protocol
+import Simplex.Messaging.Server.QueueStore
+import Simplex.Messaging.TMap (TMap)
+
+class StoreQueueClass q where
+  type MsgQueue q = mq | mq -> q
+  recipientId :: q -> RecipientId
+  queueRec :: q -> TVar (Maybe QueueRec)
+  msgQueue :: q -> TVar (Maybe (MsgQueue q))
+  withQueueLock :: q -> String -> IO a -> IO a
+
+class StoreQueueClass q => QueueStoreClass q s where
+  type QueueStoreCfg s
+  newQueueStore :: QueueStoreCfg s -> IO s
+  closeQueueStore :: s -> IO ()
+  queueCounts :: s -> IO QueueCounts
+  loadedQueues :: s -> TMap RecipientId q
+  compactQueues :: s -> IO Int64
+  addQueue_ :: s -> (RecipientId -> QueueRec -> IO q) -> RecipientId -> QueueRec -> IO (Either ErrorType q)
+  getQueue_ :: DirectParty p => s -> (RecipientId -> QueueRec -> IO q) -> SParty p -> QueueId -> IO (Either ErrorType q)
+  secureQueue :: s -> q -> SndPublicAuthKey -> IO (Either ErrorType ())
+  addQueueNotifier :: s -> q -> NtfCreds -> IO (Either ErrorType (Maybe NotifierId))
+  deleteQueueNotifier :: s -> q -> IO (Either ErrorType (Maybe NotifierId))
+  suspendQueue :: s -> q -> IO (Either ErrorType ())
+  blockQueue :: s -> q -> BlockingInfo -> IO (Either ErrorType ())
+  unblockQueue :: s -> q -> IO (Either ErrorType ())
+  updateQueueTime :: s -> q -> RoundedSystemTime -> IO (Either ErrorType QueueRec)
+  deleteStoreQueue :: s -> q -> IO (Either ErrorType (QueueRec, Maybe (MsgQueue q)))
+
+data QueueCounts = QueueCounts
+  { queueCount :: Int,
+    notifierCount :: Int
+  }
+
+withLoadedQueues :: (Monoid a, QueueStoreClass q s) => s -> (q -> IO a) -> IO a
+withLoadedQueues st f = readTVarIO (loadedQueues st) >>= foldM run mempty
+  where
+    run !acc = fmap (acc <>) . f
diff --git a/src/Simplex/Messaging/Server/StoreLog.hs b/src/Simplex/Messaging/Server/StoreLog.hs
index 5f38d6b3f..1cc8ebd6c 100644
--- a/src/Simplex/Messaging/Server/StoreLog.hs
+++ b/src/Simplex/Messaging/Server/StoreLog.hs
@@ -27,14 +27,12 @@ module Simplex.Messaging.Server.StoreLog
     logDeleteNotifier,
     logUpdateQueueTime,
     readWriteStoreLog,
-    writeQueueStore,
     readLogLines,
     foldLogLines,
   )
 where
 
 import Control.Applicative (optional, (<|>))
-import Control.Concurrent.STM
 import qualified Control.Exception as E
 import Control.Logger.Simple
 import Control.Monad
@@ -42,7 +40,6 @@ import qualified Data.Attoparsec.ByteString.Char8 as A
 import qualified Data.ByteString.Char8 as B
 import Data.Functor (($>))
 import Data.List (sort, stripPrefix)
-import qualified Data.Map.Strict as M
 import Data.Maybe (mapMaybe)
 import qualified Data.Text as T
 import Data.Time.Clock (UTCTime, addUTCTime, getCurrentTime, nominalDay)
@@ -50,10 +47,9 @@ import Data.Time.Format.ISO8601 (iso8601Show, iso8601ParseM)
 import GHC.IO (catchAny)
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Protocol
-import Simplex.Messaging.Server.MsgStore.Types
+-- import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.QueueStore
 import Simplex.Messaging.Server.StoreLog.Types
-import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Util (ifM, tshow, unlessM, whenM)
 import System.Directory (doesFileExist, listDirectory, removeFile, renameFile)
 import System.IO
@@ -162,9 +158,9 @@ instance StrEncoding StoreLogRecord where
       DeleteNotifier_ -> DeleteNotifier <$> strP
       UpdateTime_ -> UpdateTime <$> strP_ <*> strP
 
-openWriteStoreLog :: FilePath -> IO (StoreLog 'WriteMode)
-openWriteStoreLog f = do
-  h <- openFile f WriteMode
+openWriteStoreLog :: Bool -> FilePath -> IO (StoreLog 'WriteMode)
+openWriteStoreLog append f = do
+  h <- openFile f $ if append then AppendMode else WriteMode
   hSetBuffering h LineBuffering
   pure $ WriteStoreLog f h
 
@@ -243,7 +239,7 @@ readWriteStoreLog readStore writeStore f st =
       removeStoreLogBackups f
       pure s
     writeLog msg = do
-      s <- openWriteStoreLog f
+      s <- openWriteStoreLog False f
       logInfo msg
       writeStore s st
       pure s
@@ -253,15 +249,6 @@ readWriteStoreLog readStore writeStore f st =
       renameFile tempBackup timedBackup
       logInfo $ "original state preserved as " <> T.pack timedBackup
 
-writeQueueStore :: STMStoreClass s => StoreLog 'WriteMode -> s -> IO ()
-writeQueueStore s st = readTVarIO qs >>= mapM_ writeQueue . M.assocs
-  where
-    qs = queues $ stmQueueStore st
-    writeQueue (rId, q) =
-      readTVarIO (queueRec' q) >>= \case
-        Just q' -> logCreateQueue s rId q'
-        Nothing -> atomically $ TM.delete rId qs
-
 removeStoreLogBackups :: FilePath -> IO ()
 removeStoreLogBackups f = do
   ts <- getCurrentTime
@@ -272,8 +259,9 @@ removeStoreLogBackups f = do
       times2 = take (length times1 - minOldBackups) times1 -- keep 3 backups older than 24 hours
       toDelete = filter (< old) times2 -- remove all backups older than 21 day
   mapM_ (removeFile . backupPath) toDelete
-  putStrLn $ "Removed " <> show (length toDelete) <> " backups:"
-  mapM_ (putStrLn . backupPath) toDelete
+  when (length toDelete > 0) $ do
+    putStrLn $ "Removed " <> show (length toDelete) <> " backups:"
+    mapM_ (putStrLn . backupPath) toDelete
   where
     backupPathTime :: FilePath -> Maybe UTCTime
     backupPathTime = iso8601ParseM <=< stripPrefix backupPathPfx
@@ -292,11 +280,11 @@ foldLogLines tty f action initValue = do
   putStrLn $ progress count
   pure acc
   where
-    loop h i acc = do
+    loop h !i !acc = do
       s <- B.hGetLine h
       eof <- hIsEOF h
       acc' <- action acc eof s
       let i' = i + 1
       when (tty && i' `mod` 100000 == 0) $ putStr (progress i' <> "\r") >> hFlush stdout
       if eof then pure (i', acc') else loop h i' acc'
-    progress i = "Processed: " <> show i <> " lines"
+    progress i = "Processed: " <> show i <> " log lines"
diff --git a/src/Simplex/Messaging/Server/StoreLog/ReadWrite.hs b/src/Simplex/Messaging/Server/StoreLog/ReadWrite.hs
new file mode 100644
index 000000000..fd4da85ab
--- /dev/null
+++ b/src/Simplex/Messaging/Server/StoreLog/ReadWrite.hs
@@ -0,0 +1,66 @@
+{-# LANGUAGE AllowAmbiguousTypes #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+
+module Simplex.Messaging.Server.StoreLog.ReadWrite where
+
+import Control.Concurrent.STM
+import Control.Logger.Simple
+import Control.Monad
+import Control.Monad.IO.Class
+import Control.Monad.Trans.Except
+import qualified Data.ByteString.Char8 as B
+import qualified Data.Text as T
+import Data.Text.Encoding (decodeLatin1)
+import Simplex.Messaging.Encoding.String
+import Simplex.Messaging.Protocol
+import Simplex.Messaging.Server.QueueStore (QueueRec)
+import Simplex.Messaging.Server.QueueStore.Types
+import Simplex.Messaging.Server.StoreLog
+import Simplex.Messaging.Util (tshow)
+import System.IO
+
+writeQueueStore :: forall q s. QueueStoreClass q s => StoreLog 'WriteMode -> s -> IO ()
+writeQueueStore s st = withLoadedQueues st $ writeQueue
+  where
+    writeQueue :: q -> IO ()
+    writeQueue q = do
+      let rId = recipientId q
+      readTVarIO (queueRec q) >>= \case
+        Just q' -> logCreateQueue s rId q'
+        Nothing -> pure ()
+
+readQueueStore :: forall q s. QueueStoreClass q s => Bool -> (RecipientId -> QueueRec -> IO q) -> FilePath -> s -> IO ()
+readQueueStore tty mkQ f st = readLogLines tty f $ \_ -> processLine
+  where
+    processLine :: B.ByteString -> IO ()
+    processLine s = either printError procLogRecord (strDecode s)
+      where
+        procLogRecord :: StoreLogRecord -> IO ()
+        procLogRecord = \case
+          CreateQueue rId qr -> addQueue_ st mkQ rId qr >>= qError rId "CreateQueue"
+          SecureQueue qId sKey -> withQueue qId "SecureQueue" $ \q -> secureQueue st q sKey
+          AddNotifier qId ntfCreds -> withQueue qId "AddNotifier" $ \q -> addQueueNotifier st q ntfCreds
+          SuspendQueue qId -> withQueue qId "SuspendQueue" $ suspendQueue st
+          BlockQueue qId info -> withQueue qId "BlockQueue" $ \q -> blockQueue st q info
+          UnblockQueue qId -> withQueue qId "UnblockQueue" $ unblockQueue st
+          DeleteQueue qId -> withQueue qId "DeleteQueue" $ deleteStoreQueue st
+          DeleteNotifier qId -> withQueue qId "DeleteNotifier" $ deleteQueueNotifier st
+          UpdateTime qId t -> withQueue qId "UpdateTime" $ \q -> updateQueueTime st q t
+        printError :: String -> IO ()
+        printError e = B.putStrLn $ "Error parsing log: " <> B.pack e <> " - " <> s
+        withQueue :: forall a. RecipientId -> T.Text -> (q -> IO (Either ErrorType a)) -> IO ()
+        withQueue qId op a = runExceptT go >>= qError qId op
+          where
+            go = do
+              q <- ExceptT $ getQueue_ st mkQ SRecipient qId
+              liftIO (readTVarIO $ queueRec q) >>= \case
+                Nothing -> logWarn $ logPfx qId op <> "already deleted"
+                Just _ -> void $ ExceptT $ a q
+        qError qId op = \case
+          Left e -> logError $ logPfx qId op <> tshow e
+          Right _ -> pure ()
+        logPfx qId op = "STORE: " <> op <> ", stored queue " <> decodeLatin1 (strEncode qId) <> ", "
diff --git a/src/Simplex/Messaging/Util.hs b/src/Simplex/Messaging/Util.hs
index 1fdc33577..2d92b4b5e 100644
--- a/src/Simplex/Messaging/Util.hs
+++ b/src/Simplex/Messaging/Util.hs
@@ -12,7 +12,7 @@ import Control.Monad.Trans.Except
 import Control.Monad.Trans.State.Strict (StateT (..))
 import Data.Aeson (FromJSON, ToJSON)
 import qualified Data.Aeson as J
-import Data.Bifunctor (first)
+import Data.Bifunctor (first, second)
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
 import qualified Data.ByteString.Lazy.Char8 as LB
@@ -21,6 +21,7 @@ import Data.Int (Int64)
 import Data.List (groupBy, sortOn)
 import Data.List.NonEmpty (NonEmpty (..))
 import qualified Data.List.NonEmpty as L
+import Data.Maybe (listToMaybe)
 import Data.Map.Strict (Map)
 import qualified Data.Map.Strict as M
 import Data.Text (Text)
@@ -88,8 +89,19 @@ unlessM :: Monad m => m Bool -> m () -> m ()
 unlessM b = ifM b $ pure ()
 {-# INLINE unlessM #-}
 
+anyM :: Monad m => [m Bool] -> m Bool
+anyM = foldM (\r a -> if r then pure r else (r ||) <$!> a) False
+{-# INLINE anyM #-}
+
+infixl 1  $>>, $>>=
+
 ($>>=) :: (Monad m, Monad f, Traversable f) => m (f a) -> (a -> m (f b)) -> m (f b)
 f $>>= g = f >>= fmap join . mapM g
+{-# INLINE ($>>=) #-}
+
+($>>) :: (Monad m, Monad f, Traversable f) => m (f a) -> m (f b) -> m (f b)
+f $>> g = f $>>= \_ -> g
+{-# INLINE ($>>) #-}
 
 mapME :: (Monad m, Traversable t) => (a -> m (Either e b)) -> t (Either e a) -> m (t (Either e b))
 mapME f = mapM (bindRight f)
@@ -144,6 +156,13 @@ mapAccumLM_NonEmpty
 mapAccumLM_NonEmpty f s (x :| xs) =
   [(s2, x' :| xs') | (s1, x') <- f s x, (s2, xs') <- mapAccumLM_List f s1 xs]
 
+tryWriteTBQueue :: TBQueue a -> a -> STM Bool
+tryWriteTBQueue q a = do
+  full <- isFullTBQueue q
+  unless full $ writeTBQueue q a
+  pure $ not full
+{-# INLINE tryWriteTBQueue #-}
+
 catchAll :: IO a -> (E.SomeException -> IO a) -> IO a
 catchAll = E.catch
 {-# INLINE catchAll #-}
@@ -180,6 +199,19 @@ eitherToMaybe :: Either a b -> Maybe b
 eitherToMaybe = either (const Nothing) Just
 {-# INLINE eitherToMaybe #-}
 
+listToEither :: e -> [a] -> Either e a
+listToEither _ (x : _) = Right x
+listToEither e _ = Left e
+
+firstRow :: (a -> b) -> e -> IO [a] -> IO (Either e b)
+firstRow f e a = second f . listToEither e <$> a
+
+maybeFirstRow :: Functor f => (a -> b) -> f [a] -> f (Maybe b)
+maybeFirstRow f q = fmap f . listToMaybe <$> q
+
+firstRow' :: (a -> Either e b) -> e -> IO [a] -> IO (Either e b)
+firstRow' f e a = (f <=< listToEither e) <$> a
+
 groupOn :: Eq k => (a -> k) -> [a] -> [[a]]
 groupOn = groupBy . eqOn
   where
diff --git a/tests/AgentTests.hs b/tests/AgentTests.hs
index 1c0a69d8d..a9a64e5c7 100644
--- a/tests/AgentTests.hs
+++ b/tests/AgentTests.hs
@@ -14,6 +14,7 @@ import AgentTests.FunctionalAPITests (functionalAPITests)
 import AgentTests.MigrationTests (migrationTests)
 import AgentTests.NotificationTests (notificationTests)
 import AgentTests.ServerChoice (serverChoiceTests)
+import Simplex.Messaging.Server.Env.STM (AStoreType (..))
 import Simplex.Messaging.Transport (ATransport (..))
 import Test.Hspec
 #if defined(dbPostgres)
@@ -23,8 +24,8 @@ import Simplex.Messaging.Agent.Store.Postgres.Util (dropAllSchemasExceptSystem)
 import AgentTests.SQLiteTests (storeTests)
 #endif
 
-agentTests :: ATransport -> Spec
-agentTests (ATransport t) = do
+agentTests :: (ATransport, AStoreType) -> Spec
+agentTests ps = do
   describe "Migration tests" migrationTests
   describe "Connection request" connectionRequestTests
   describe "Double ratchet tests" doubleRatchetTests
@@ -33,9 +34,9 @@ agentTests (ATransport t) = do
 #else
   do
 #endif
-    describe "Functional API" $ functionalAPITests (ATransport t)
+    describe "Functional API" $ functionalAPITests ps
     describe "Chosen servers" serverChoiceTests
-    describe "Notification tests" $ notificationTests (ATransport t)
+    describe "Notification tests" $ notificationTests ps
 #if !defined(dbPostgres)
   describe "SQLite store" storeTests
 #endif
diff --git a/tests/AgentTests/FunctionalAPITests.hs b/tests/AgentTests/FunctionalAPITests.hs
index 027b4cff3..cbe1c47bc 100644
--- a/tests/AgentTests/FunctionalAPITests.hs
+++ b/tests/AgentTests/FunctionalAPITests.hs
@@ -77,7 +77,7 @@ import Data.Type.Equality (testEquality, (:~:) (Refl))
 import Data.Word (Word16)
 import GHC.Stack (withFrozenCallStack)
 import SMPAgentClient
-import SMPClient (cfg, prevRange, prevVersion, testPort, testPort2, testStoreLogFile2, testStoreMsgsDir2, withSmpServer, withSmpServerConfigOn, withSmpServerProxy, withSmpServerStoreLogOn, withSmpServerStoreMsgLogOn)
+import SMPClient (cfgMS, cfgJ2QS, prevRange, prevVersion, testPort, testPort2, testStoreLogFile, withSmpServer, withSmpServerConfigOn, withSmpServerProxy, withSmpServerStoreLogOn, withSmpServerStoreMsgLogOn)
 import Simplex.Messaging.Agent hiding (createConnection, joinConnection, sendMessage)
 import qualified Simplex.Messaging.Agent as A
 import Simplex.Messaging.Agent.Client (ProtocolTestFailure (..), ProtocolTestStep (..), ServerQueueInfo (..), UserNetworkInfo (..), UserNetworkType (..), waitForUserNetwork)
@@ -96,9 +96,9 @@ import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Notifications.Transport (NTFVersion, pattern VersionNTF)
 import Simplex.Messaging.Protocol (BasicAuth, ErrorType (..), MsgBody, ProtocolServer (..), SubscriptionMode (..), supportedSMPClientVRange)
 import qualified Simplex.Messaging.Protocol as SMP
-import Simplex.Messaging.Server.Env.STM (ServerConfig (..))
+import Simplex.Messaging.Server.Env.STM (AServerStoreCfg (..), AStoreType (..), ServerConfig (..), ServerStoreCfg (..), StorePaths (..))
 import Simplex.Messaging.Server.Expiration
-import Simplex.Messaging.Server.MsgStore.Types (AMSType (..), SMSType (..))
+import Simplex.Messaging.Server.MsgStore.Types (SMSType (..), SQSType (..))
 import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.Transport (ATransport (..), SMPVersion, VersionSMP, authCmdsSMPVersion, currentServerSMPRelayVersion, minClientSMPRelayVersion, minServerSMPRelayVersion, sndAuthKeySMPVersion, supportedSMPHandshakes)
 import Simplex.Messaging.Util (bshow, diffToMicroseconds)
@@ -263,218 +263,218 @@ sendMessage c connId msgFlags msgBody = do
   liftIO $ pqEnc `shouldBe` PQEncOn
   pure msgId
 
-functionalAPITests :: ATransport -> Spec
-functionalAPITests t = do
+functionalAPITests :: (ATransport, AStoreType) -> Spec
+functionalAPITests ps = do
   describe "Establishing duplex connection" $ do
-    testMatrix2 t runAgentClientTest
+    testMatrix2 ps runAgentClientTest
     it "should connect when server with multiple identities is stored" $
-      withSmpServer t testServerMultipleIdentities
+      withSmpServer ps testServerMultipleIdentities
     it "should connect with two peers" $
-      withSmpServer t testAgentClient3
+      withSmpServer ps testAgentClient3
     it "should establish connection without PQ encryption and enable it" $
-      withSmpServer t testEnablePQEncryption
+      withSmpServer ps testEnablePQEncryption
   describe "Duplex connection - delivery stress test" $ do
-    describe "one way (50)" $ testMatrix2Stress t $ runAgentClientStressTestOneWay 50
-    xdescribe "one way (1000)" $ testMatrix2Stress t $ runAgentClientStressTestOneWay 1000
-    describe "two way concurrently (50)" $ testMatrix2Stress t $ runAgentClientStressTestConc 25
-    xdescribe "two way concurrently (1000)" $ testMatrix2Stress t $ runAgentClientStressTestConc 500
+    describe "one way (50)" $ testMatrix2Stress ps $ runAgentClientStressTestOneWay 50
+    xdescribe "one way (1000)" $ testMatrix2Stress ps $ runAgentClientStressTestOneWay 1000
+    describe "two way concurrently (50)" $ testMatrix2Stress ps $ runAgentClientStressTestConc 25
+    xdescribe "two way concurrently (1000)" $ testMatrix2Stress ps $ runAgentClientStressTestConc 500
   describe "Establishing duplex connection, different PQ settings" $ do
-    testPQMatrix2 t $ runAgentClientTestPQ False True
+    testPQMatrix2 ps $ runAgentClientTestPQ False True
   describe "Establishing duplex connection v2, different Ratchet versions" $
-    testRatchetMatrix2 t runAgentClientTest
+    testRatchetMatrix2 ps runAgentClientTest
   describe "Establish duplex connection via contact address" $
-    testMatrix2 t runAgentClientContactTest
+    testMatrix2 ps runAgentClientContactTest
   describe "Establish duplex connection via contact address, different PQ settings" $ do
-    testPQMatrix2NoInv t $ runAgentClientContactTestPQ False True PQSupportOn
+    testPQMatrix2NoInv ps $ runAgentClientContactTestPQ False True PQSupportOn
   describe "Establish duplex connection via contact address v2, different Ratchet versions" $
-    testRatchetMatrix2 t runAgentClientContactTest
+    testRatchetMatrix2 ps runAgentClientContactTest
   describe "Establish duplex connection via contact address, different PQ settings" $ do
-    testPQMatrix3 t $ runAgentClientContactTestPQ3 True
+    testPQMatrix3 ps $ runAgentClientContactTestPQ3 True
   it "should support rejecting contact request" $
-    withSmpServer t testRejectContactRequest
+    withSmpServer ps testRejectContactRequest
   describe "Changing connection user id" $ do
     it "should change user id for new connections" $ do
-      withSmpServer t testUpdateConnectionUserId
+      withSmpServer ps testUpdateConnectionUserId
   describe "Establishing connection asynchronously" $ do
     it "should connect with initiating client going offline" $
-      withSmpServer t testAsyncInitiatingOffline
+      withSmpServer ps testAsyncInitiatingOffline
     it "should connect with joining client going offline before its queue activation" $
-      withSmpServer t testAsyncJoiningOfflineBeforeActivation
+      withSmpServer ps testAsyncJoiningOfflineBeforeActivation
     it "should connect with both clients going offline" $
-      withSmpServer t testAsyncBothOffline
+      withSmpServer ps testAsyncBothOffline
     it "should connect on the second attempt if server was offline" $
-      testAsyncServerOffline t
+      testAsyncServerOffline ps
     it "should restore confirmation after client restart" $
-      testAllowConnectionClientRestart t
+      testAllowConnectionClientRestart ps
   describe "Message delivery" $ do
     describe "update connection agent version on received messages" $ do
-      it "should increase if compatible, shouldn't decrease" $
-        testIncreaseConnAgentVersion t
+      it "should increase if compatible, shouldn'ps decrease" $
+        testIncreaseConnAgentVersion ps
       it "should increase to max compatible version" $
-        testIncreaseConnAgentVersionMaxCompatible t
+        testIncreaseConnAgentVersionMaxCompatible ps
       it "should increase when connection was negotiated on different versions" $
-        testIncreaseConnAgentVersionStartDifferentVersion t
+        testIncreaseConnAgentVersionStartDifferentVersion ps
     -- TODO PQ tests for upgrading connection to PQ encryption
     it "should deliver message after client restart" $
-      testDeliverClientRestart t
+      testDeliverClientRestart ps
     it "should deliver messages to the user once, even if repeat delivery is made by the server (no ACK)" $
-      testDuplicateMessage t
+      testDuplicateMessage ps
     it "should report error via msg integrity on skipped messages" $
-      testSkippedMessages t
+      testSkippedMessages ps
     it "should connect to the server when server goes up if it initially was down" $
-      testDeliveryAfterSubscriptionError t
+      testDeliveryAfterSubscriptionError ps
     it "should deliver messages if one of connections has quota exceeded" $
-      testMsgDeliveryQuotaExceeded t
+      testMsgDeliveryQuotaExceeded ps
     describe "message expiration" $ do
-      it "should expire one message" $ testExpireMessage t
-      it "should expire multiple messages" $ testExpireManyMessages t
-      it "should expire one message if quota is exceeded" $ testExpireMessageQuota t
-      it "should expire multiple messages if quota is exceeded" $ testExpireManyMessagesQuota t
+      it "should expire one message" $ testExpireMessage ps
+      it "should expire multiple messages" $ testExpireManyMessages ps
+      it "should expire one message if quota is exceeded" $ testExpireMessageQuota ps
+      it "should expire multiple messages if quota is exceeded" $ testExpireManyMessagesQuota ps
 #if !defined(dbPostgres)
     -- TODO [postgres] restore from outdated db backup (we use copyFile/renameFile for sqlite)
     describe "Ratchet synchronization" $ do
       it "should report ratchet de-synchronization, synchronize ratchets" $
-        testRatchetSync t
+        testRatchetSync ps
       it "should synchronize ratchets after server being offline" $
-        testRatchetSyncServerOffline t
+        testRatchetSyncServerOffline ps
       it "should synchronize ratchets after client restart" $
-        testRatchetSyncClientRestart t
+        testRatchetSyncClientRestart ps
       it "should synchronize ratchets after suspend/foreground" $
-        testRatchetSyncSuspendForeground t
+        testRatchetSyncSuspendForeground ps
       it "should synchronize ratchets when clients start synchronization simultaneously" $
-        testRatchetSyncSimultaneous t
+        testRatchetSyncSimultaneous ps
 #endif
     describe "Subscription mode OnlyCreate" $ do
       it "messages delivered only when polled (v8 - slow handshake)" $
-        withSmpServer t testOnlyCreatePullSlowHandshake
+        withSmpServer ps testOnlyCreatePullSlowHandshake
       it "messages delivered only when polled" $
-        withSmpServer t testOnlyCreatePull
+        withSmpServer ps testOnlyCreatePull
   describe "Inactive client disconnection" $ do
     it "should disconnect clients without subs if they were inactive longer than TTL" $
-      testInactiveNoSubs t
+      testInactiveNoSubs ps
     it "should NOT disconnect inactive clients when they have subscriptions" $
-      testInactiveWithSubs t
+      testInactiveWithSubs ps
     it "should NOT disconnect active clients" $
-      testActiveClientNotDisconnected t
+      testActiveClientNotDisconnected ps
   describe "Suspending agent" $ do
     it "should update client when agent is suspended" $
-      withSmpServer t testSuspendingAgent
+      withSmpServer ps testSuspendingAgent
     it "should complete sending messages when agent is suspended" $
-      testSuspendingAgentCompleteSending t
+      testSuspendingAgentCompleteSending ps
     it "should suspend agent on timeout, even if pending messages not sent" $
-      testSuspendingAgentTimeout t
+      testSuspendingAgentTimeout ps
   describe "Batching SMP commands" $ do
     -- disable this and enable the following test to run tests with coverage
     it "should subscribe to multiple (200) subscriptions with batching" $
-      testBatchedSubscriptions 200 10 t
+      testBatchedSubscriptions 200 10 ps
     skip "faster version of the previous test (200 subscriptions gets very slow with test coverage)" $
       it "should subscribe to multiple (6) subscriptions with batching" $
-        testBatchedSubscriptions 6 3 t
+        testBatchedSubscriptions 6 3 ps
     it "should subscribe to multiple connections with pending messages" $
-      withSmpServer t $
+      withSmpServer ps $
         testBatchedPendingMessages 10 5
   describe "Batch send messages" $ do
-    it "should send multiple messages to the same connection" $ withSmpServer t testSendMessagesB
-    it "should send messages to the 2 connections" $ withSmpServer t testSendMessagesB2
+    it "should send multiple messages to the same connection" $ withSmpServer ps testSendMessagesB
+    it "should send messages to the 2 connections" $ withSmpServer ps testSendMessagesB2
   describe "Async agent commands" $ do
     describe "connect using async agent commands" $
-      testBasicMatrix2 t testAsyncCommands
+      testBasicMatrix2 ps testAsyncCommands
     it "should restore and complete async commands on restart" $
-      testAsyncCommandsRestore t
+      testAsyncCommandsRestore ps
     describe "accept connection using async command" $
-      testBasicMatrix2 t testAcceptContactAsync
+      testBasicMatrix2 ps testAcceptContactAsync
     it "should delete connections using async command when server connection fails" $
-      testDeleteConnectionAsync t
+      testDeleteConnectionAsync ps
     it "join connection when reply queue creation fails (v8 - slow handshake)" $
-      testJoinConnectionAsyncReplyErrorV8 t
+      testJoinConnectionAsyncReplyErrorV8 ps
     it "join connection when reply queue creation fails" $
-      testJoinConnectionAsyncReplyError t
+      testJoinConnectionAsyncReplyError ps
     describe "delete connection waiting for delivery" $ do
       it "should delete connection immediately if there are no pending messages" $
-        testWaitDeliveryNoPending t
+        testWaitDeliveryNoPending ps
       it "should delete connection after waiting for delivery to complete" $
-        testWaitDelivery t
-      it "should delete connection if message can't be delivered due to AUTH error" $
-        testWaitDeliveryAUTHErr t
-      it "should delete connection by timeout even if message wasn't delivered" $
-        testWaitDeliveryTimeout t
+        testWaitDelivery ps
+      it "should delete connection if message can'ps be delivered due to AUTH error" $
+        testWaitDeliveryAUTHErr ps
+      it "should delete connection by timeout even if message wasn'ps delivered" $
+        testWaitDeliveryTimeout ps
       it "should delete connection by timeout, message in progress can be delivered" $
-        testWaitDeliveryTimeout2 t
+        testWaitDeliveryTimeout2 ps
   describe "Users" $ do
     it "should create and delete user with connections" $
-      withSmpServer t testUsers
+      withSmpServer ps testUsers
     it "should create and delete user without connections" $
-      withSmpServer t testDeleteUserQuietly
+      withSmpServer ps testDeleteUserQuietly
     it "should create and delete user with connections when server connection fails" $
-      testUsersNoServer t
+      testUsersNoServer ps
     it "should connect two users and switch session mode" $
-      withSmpServer t testTwoUsers
+      withSmpServer ps testTwoUsers
   describe "Connection switch" $ do
     describe "should switch delivery to the new queue" $
-      testServerMatrix2 t testSwitchConnection
+      testServerMatrix2 ps testSwitchConnection
     describe "should switch to new queue asynchronously" $
-      testServerMatrix2 t testSwitchAsync
+      testServerMatrix2 ps testSwitchAsync
     describe "should delete connection during switch" $
-      testServerMatrix2 t testSwitchDelete
+      testServerMatrix2 ps testSwitchDelete
     describe "should abort switch in Started phase" $
-      testServerMatrix2 t testAbortSwitchStarted
+      testServerMatrix2 ps testAbortSwitchStarted
     describe "should abort switch in Started phase, reinitiate immediately" $
-      testServerMatrix2 t testAbortSwitchStartedReinitiate
+      testServerMatrix2 ps testAbortSwitchStartedReinitiate
     describe "should prohibit to abort switch in Secured phase" $
-      testServerMatrix2 t testCannotAbortSwitchSecured
+      testServerMatrix2 ps testCannotAbortSwitchSecured
     describe "should switch two connections simultaneously" $
-      testServerMatrix2 t testSwitch2Connections
+      testServerMatrix2 ps testSwitch2Connections
     describe "should switch two connections simultaneously, abort one" $
-      testServerMatrix2 t testSwitch2ConnectionsAbort1
+      testServerMatrix2 ps testSwitch2ConnectionsAbort1
   describe "SMP basic auth" $ do
     forM_ (nub [prevVersion authCmdsSMPVersion, authCmdsSMPVersion, currentServerSMPRelayVersion]) $ \v -> do
       let baseId = if v >= sndAuthKeySMPVersion then 1 else 3
           sqSecured = if v >= sndAuthKeySMPVersion then True else False
       describe ("v" <> show v <> ": with server auth") $ do
         --                                       allow NEW | server auth, v | clnt1 auth, v  | clnt2 auth, v    |  2 - success, 1 - JOIN fail, 0 - NEW fail
-        it "success                " $ testBasicAuth t True (Just "abcd", v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 2
-        it "disabled               " $ testBasicAuth t False (Just "abcd", v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
-        it "NEW fail, no auth      " $ testBasicAuth t True (Just "abcd", v) (Nothing, v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
-        it "NEW fail, bad auth     " $ testBasicAuth t True (Just "abcd", v) (Just "wrong", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
-        it "JOIN fail, no auth     " $ testBasicAuth t True (Just "abcd", v) (Just "abcd", v) (Nothing, v) sqSecured baseId `shouldReturn` 1
-        it "JOIN fail, bad auth    " $ testBasicAuth t True (Just "abcd", v) (Just "abcd", v) (Just "wrong", v) sqSecured baseId `shouldReturn` 1
+        it "success                " $ testBasicAuth ps True (Just "abcd", v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 2
+        it "disabled               " $ testBasicAuth ps False (Just "abcd", v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
+        it "NEW fail, no auth      " $ testBasicAuth ps True (Just "abcd", v) (Nothing, v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
+        it "NEW fail, bad auth     " $ testBasicAuth ps True (Just "abcd", v) (Just "wrong", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
+        it "JOIN fail, no auth     " $ testBasicAuth ps True (Just "abcd", v) (Just "abcd", v) (Nothing, v) sqSecured baseId `shouldReturn` 1
+        it "JOIN fail, bad auth    " $ testBasicAuth ps True (Just "abcd", v) (Just "abcd", v) (Just "wrong", v) sqSecured baseId `shouldReturn` 1
       describe ("v" <> show v <> ": no server auth") $ do
-        it "success     " $ testBasicAuth t True (Nothing, v) (Nothing, v) (Nothing, v) sqSecured baseId `shouldReturn` 2
-        it "srv disabled" $ testBasicAuth t False (Nothing, v) (Nothing, v) (Nothing, v) sqSecured baseId `shouldReturn` 0
-        it "auth fst    " $ testBasicAuth t True (Nothing, v) (Just "abcd", v) (Nothing, v) sqSecured baseId `shouldReturn` 2
-        it "auth snd    " $ testBasicAuth t True (Nothing, v) (Nothing, v) (Just "abcd", v) sqSecured baseId `shouldReturn` 2
-        it "auth both   " $ testBasicAuth t True (Nothing, v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 2
-        it "auth, disabled" $ testBasicAuth t False (Nothing, v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
+        it "success     " $ testBasicAuth ps True (Nothing, v) (Nothing, v) (Nothing, v) sqSecured baseId `shouldReturn` 2
+        it "srv disabled" $ testBasicAuth ps False (Nothing, v) (Nothing, v) (Nothing, v) sqSecured baseId `shouldReturn` 0
+        it "auth fst    " $ testBasicAuth ps True (Nothing, v) (Just "abcd", v) (Nothing, v) sqSecured baseId `shouldReturn` 2
+        it "auth snd    " $ testBasicAuth ps True (Nothing, v) (Nothing, v) (Just "abcd", v) sqSecured baseId `shouldReturn` 2
+        it "auth both   " $ testBasicAuth ps True (Nothing, v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 2
+        it "auth, disabled" $ testBasicAuth ps False (Nothing, v) (Just "abcd", v) (Just "abcd", v) sqSecured baseId `shouldReturn` 0
   describe "SMP server test via agent API" $ do
-    it "should pass without basic auth" $ testSMPServerConnectionTest t Nothing (noAuthSrv testSMPServer2) `shouldReturn` Nothing
+    it "should pass without basic auth" $ testSMPServerConnectionTest ps Nothing (noAuthSrv testSMPServer2) `shouldReturn` Nothing
     let srv1 = testSMPServer2 {keyHash = "1234"}
     it "should fail with incorrect fingerprint" $ do
-      testSMPServerConnectionTest t Nothing (noAuthSrv srv1) `shouldReturn` Just (ProtocolTestFailure TSConnect $ BROKER (B.unpack $ strEncode srv1) NETWORK)
+      testSMPServerConnectionTest ps Nothing (noAuthSrv srv1) `shouldReturn` Just (ProtocolTestFailure TSConnect $ BROKER (B.unpack $ strEncode srv1) NETWORK)
     describe "server with password" $ do
       let auth = Just "abcd"
           srv = ProtoServerWithAuth testSMPServer2
           authErr = Just (ProtocolTestFailure TSCreateQueue $ SMP (B.unpack $ strEncode testSMPServer2) AUTH)
-      it "should pass with correct password" $ testSMPServerConnectionTest t auth (srv auth) `shouldReturn` Nothing
-      it "should fail without password" $ testSMPServerConnectionTest t auth (srv Nothing) `shouldReturn` authErr
-      it "should fail with incorrect password" $ testSMPServerConnectionTest t auth (srv $ Just "wrong") `shouldReturn` authErr
+      it "should pass with correct password" $ testSMPServerConnectionTest ps auth (srv auth) `shouldReturn` Nothing
+      it "should fail without password" $ testSMPServerConnectionTest ps auth (srv Nothing) `shouldReturn` authErr
+      it "should fail with incorrect password" $ testSMPServerConnectionTest ps auth (srv $ Just "wrong") `shouldReturn` authErr
   describe "getRatchetAdHash" $
     it "should return the same data for both peers" $
-      withSmpServer t testRatchetAdHash
+      withSmpServer ps testRatchetAdHash
   describe "Delivery receipts" $ do
-    it "should send and receive delivery receipt" $ withSmpServer t testDeliveryReceipts
-    it "should send delivery receipt only in connection v3+" $ testDeliveryReceiptsVersion t
-    it "send delivery receipts concurrently with messages" $ testDeliveryReceiptsConcurrent t
+    it "should send and receive delivery receipt" $ withSmpServer ps testDeliveryReceipts
+    it "should send delivery receipt only in connection v3+" $ testDeliveryReceiptsVersion ps
+    it "send delivery receipts concurrently with messages" $ testDeliveryReceiptsConcurrent ps
   describe "user network info" $ do
     it "should wait for user network" testWaitForUserNetwork
     it "should not reset online to offline if happens too quickly" testDoNotResetOnlineToOffline
     it "should resume multiple threads" testResumeMultipleThreads
   describe "SMP queue info" $ do
     it "server should respond with queue and subscription information" $
-      withSmpServer t testServerQueueInfo
+      withSmpServer ps testServerQueueInfo
 
-testBasicAuth :: ATransport -> Bool -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, VersionSMP) -> SndQueueSecured -> AgentMsgId -> IO Int
-testBasicAuth t allowNewQueues srv@(srvAuth, srvVersion) clnt1 clnt2 sqSecured baseId = do
-  let testCfg = cfg {allowNewQueues, newQueueBasicAuth = srvAuth, smpServerVRange = V.mkVersionRange minServerSMPRelayVersion srvVersion}
+testBasicAuth :: (ATransport, AStoreType) -> Bool -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, VersionSMP) -> SndQueueSecured -> AgentMsgId -> IO Int
+testBasicAuth (t, msType) allowNewQueues srv@(srvAuth, srvVersion) clnt1 clnt2 sqSecured baseId = do
+  let testCfg = (cfgMS msType) {allowNewQueues, newQueueBasicAuth = srvAuth, smpServerVRange = V.mkVersionRange minServerSMPRelayVersion srvVersion}
       canCreate1 = canCreateQueue allowNewQueues srv clnt1
       canCreate2 = canCreateQueue allowNewQueues srv clnt2
       expected
@@ -489,57 +489,57 @@ canCreateQueue :: Bool -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, Ver
 canCreateQueue allowNew (srvAuth, _) (clntAuth, _) =
   allowNew && (isNothing srvAuth || srvAuth == clntAuth)
 
-testMatrix2 :: HasCallStack => ATransport -> (PQSupport -> SndQueueSecured -> Bool -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
-testMatrix2 t runTest = do
-  it "current, via proxy" $ withSmpServerProxy t $ runTestCfgServers2 agentCfg agentCfg (initAgentServersProxy SPMAlways SPFProhibit) 1 $ runTest PQSupportOn True True
-  it "v8, via proxy" $ withSmpServerProxy t $ runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3 $ runTest PQSupportOn False True
-  it "current" $ withSmpServer t $ runTestCfg2 agentCfg agentCfg 1 $ runTest PQSupportOn True False
-  it "prev" $ withSmpServer t $ runTestCfg2 agentCfgVPrev agentCfgVPrev 3 $ runTest PQSupportOff False False
-  it "prev to current" $ withSmpServer t $ runTestCfg2 agentCfgVPrev agentCfg 3 $ runTest PQSupportOff False False
-  it "current to prev" $ withSmpServer t $ runTestCfg2 agentCfg agentCfgVPrev 3 $ runTest PQSupportOff False False
+testMatrix2 :: HasCallStack => (ATransport, AStoreType) -> (PQSupport -> SndQueueSecured -> Bool -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
+testMatrix2 ps runTest = do
+  it "current, via proxy" $ withSmpServerProxy ps $ runTestCfgServers2 agentCfg agentCfg (initAgentServersProxy SPMAlways SPFProhibit) 1 $ runTest PQSupportOn True True
+  it "v8, via proxy" $ withSmpServerProxy ps $ runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3 $ runTest PQSupportOn False True
+  it "current" $ withSmpServer ps $ runTestCfg2 agentCfg agentCfg 1 $ runTest PQSupportOn True False
+  it "prev" $ withSmpServer ps $ runTestCfg2 agentCfgVPrev agentCfgVPrev 3 $ runTest PQSupportOff False False
+  it "prev to current" $ withSmpServer ps $ runTestCfg2 agentCfgVPrev agentCfg 3 $ runTest PQSupportOff False False
+  it "current to prev" $ withSmpServer ps $ runTestCfg2 agentCfg agentCfgVPrev 3 $ runTest PQSupportOff False False
 
-testMatrix2Stress :: HasCallStack => ATransport -> (PQSupport -> SndQueueSecured -> Bool -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
-testMatrix2Stress t runTest = do
-  it "current, via proxy" $ withSmpServerProxy t $ runTestCfgServers2 aCfg aCfg (initAgentServersProxy SPMAlways SPFProhibit) 1 $ runTest PQSupportOn True True
-  it "v8, via proxy" $ withSmpServerProxy t $ runTestCfgServers2 aProxyCfgV8 aProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3 $ runTest PQSupportOn False True
-  it "current" $ withSmpServer t $ runTestCfg2 aCfg aCfg 1 $ runTest PQSupportOn True False
-  it "prev" $ withSmpServer t $ runTestCfg2 aCfgVPrev aCfgVPrev 3 $ runTest PQSupportOff False False
-  it "prev to current" $ withSmpServer t $ runTestCfg2 aCfgVPrev aCfg 3 $ runTest PQSupportOff False False
-  it "current to prev" $ withSmpServer t $ runTestCfg2 aCfg aCfgVPrev 3 $ runTest PQSupportOff False False
+testMatrix2Stress :: HasCallStack => (ATransport, AStoreType) -> (PQSupport -> SndQueueSecured -> Bool -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
+testMatrix2Stress ps runTest = do
+  it "current, via proxy" $ withSmpServerProxy ps $ runTestCfgServers2 aCfg aCfg (initAgentServersProxy SPMAlways SPFProhibit) 1 $ runTest PQSupportOn True True
+  it "v8, via proxy" $ withSmpServerProxy ps $ runTestCfgServers2 aProxyCfgV8 aProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3 $ runTest PQSupportOn False True
+  it "current" $ withSmpServer ps $ runTestCfg2 aCfg aCfg 1 $ runTest PQSupportOn True False
+  it "prev" $ withSmpServer ps $ runTestCfg2 aCfgVPrev aCfgVPrev 3 $ runTest PQSupportOff False False
+  it "prev to current" $ withSmpServer ps $ runTestCfg2 aCfgVPrev aCfg 3 $ runTest PQSupportOff False False
+  it "current to prev" $ withSmpServer ps $ runTestCfg2 aCfg aCfgVPrev 3 $ runTest PQSupportOff False False
   where
     aCfg = agentCfg {messageRetryInterval = fastMessageRetryInterval}
     aProxyCfgV8 = agentProxyCfgV8 {messageRetryInterval = fastMessageRetryInterval}
     aCfgVPrev = agentCfgVPrev {messageRetryInterval = fastMessageRetryInterval}
 
-testBasicMatrix2 :: HasCallStack => ATransport -> (SndQueueSecured -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
-testBasicMatrix2 t runTest = do
-  it "current" $ withSmpServer t $ runTestCfg2 agentCfg agentCfg 1 $ runTest True
-  it "prev" $ withSmpServer t $ runTestCfg2 agentCfgVPrevPQ agentCfgVPrevPQ 3 $ runTest False
-  it "prev to current" $ withSmpServer t $ runTestCfg2 agentCfgVPrevPQ agentCfg 3 $ runTest False
-  it "current to prev" $ withSmpServer t $ runTestCfg2 agentCfg agentCfgVPrevPQ 3 $ runTest False
+testBasicMatrix2 :: HasCallStack => (ATransport, AStoreType) -> (SndQueueSecured -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
+testBasicMatrix2 ps runTest = do
+  it "current" $ withSmpServer ps $ runTestCfg2 agentCfg agentCfg 1 $ runTest True
+  it "prev" $ withSmpServer ps $ runTestCfg2 agentCfgVPrevPQ agentCfgVPrevPQ 3 $ runTest False
+  it "prev to current" $ withSmpServer ps $ runTestCfg2 agentCfgVPrevPQ agentCfg 3 $ runTest False
+  it "current to prev" $ withSmpServer ps $ runTestCfg2 agentCfg agentCfgVPrevPQ 3 $ runTest False
 
-testRatchetMatrix2 :: HasCallStack => ATransport -> (PQSupport -> SndQueueSecured -> Bool -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
-testRatchetMatrix2 t runTest = do
-  it "current, via proxy" $ withSmpServerProxy t $ runTestCfgServers2 agentCfg agentCfg (initAgentServersProxy SPMAlways SPFProhibit) 1 $ runTest PQSupportOn True True
-  it "v8, via proxy" $ withSmpServerProxy t $ runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3 $ runTest PQSupportOn False True
-  it "ratchet current" $ withSmpServer t $ runTestCfg2 agentCfg agentCfg 1 $ runTest PQSupportOn True False
-  it "ratchet prev" $ withSmpServer t $ runTestCfg2 agentCfgRatchetVPrev agentCfgRatchetVPrev 1 $ runTest PQSupportOff True False
-  it "ratchets prev to current" $ withSmpServer t $ runTestCfg2 agentCfgRatchetVPrev agentCfg 1 $ runTest PQSupportOff True False
-  it "ratchets current to prev" $ withSmpServer t $ runTestCfg2 agentCfg agentCfgRatchetVPrev 1 $ runTest PQSupportOff True False
+testRatchetMatrix2 :: HasCallStack => (ATransport, AStoreType) -> (PQSupport -> SndQueueSecured -> Bool -> AgentClient -> AgentClient -> AgentMsgId -> IO ()) -> Spec
+testRatchetMatrix2 ps runTest = do
+  it "current, via proxy" $ withSmpServerProxy ps $ runTestCfgServers2 agentCfg agentCfg (initAgentServersProxy SPMAlways SPFProhibit) 1 $ runTest PQSupportOn True True
+  it "v8, via proxy" $ withSmpServerProxy ps $ runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3 $ runTest PQSupportOn False True
+  it "ratchet current" $ withSmpServer ps $ runTestCfg2 agentCfg agentCfg 1 $ runTest PQSupportOn True False
+  it "ratchet prev" $ withSmpServer ps $ runTestCfg2 agentCfgRatchetVPrev agentCfgRatchetVPrev 1 $ runTest PQSupportOff True False
+  it "ratchets prev to current" $ withSmpServer ps $ runTestCfg2 agentCfgRatchetVPrev agentCfg 1 $ runTest PQSupportOff True False
+  it "ratchets current to prev" $ withSmpServer ps $ runTestCfg2 agentCfg agentCfgRatchetVPrev 1 $ runTest PQSupportOff True False
 
-testServerMatrix2 :: HasCallStack => ATransport -> (InitialAgentServers -> IO ()) -> Spec
-testServerMatrix2 t runTest = do
-  it "1 server" $ withSmpServer t $ runTest initAgentServers
-  it "2 servers" $ withSmpServer t $ withSmpServerConfigOn t cfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \_ -> runTest initAgentServers2
+testServerMatrix2 :: HasCallStack => (ATransport, AStoreType) -> (InitialAgentServers -> IO ()) -> Spec
+testServerMatrix2 ps@(t, ASType qs _ms) runTest = do
+  it "1 server" $ withSmpServer ps $ runTest initAgentServers
+  it "2 servers" $ withSmpServer ps $ withSmpServerConfigOn t (cfgJ2QS qs) testPort2 $ \_ -> runTest initAgentServers2
 
-testPQMatrix2 :: HasCallStack => ATransport -> (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) -> Spec
+testPQMatrix2 :: HasCallStack => (ATransport, AStoreType) -> (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) -> Spec
 testPQMatrix2 = pqMatrix2_ True
 
-testPQMatrix2NoInv :: HasCallStack => ATransport -> (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) -> Spec
+testPQMatrix2NoInv :: HasCallStack => (ATransport, AStoreType) -> (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) -> Spec
 testPQMatrix2NoInv = pqMatrix2_ False
 
-pqMatrix2_ :: HasCallStack => Bool -> ATransport -> (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) -> Spec
-pqMatrix2_ pqInv t test = do
+pqMatrix2_ :: HasCallStack => Bool -> (ATransport, AStoreType) -> (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) -> Spec
+pqMatrix2_ pqInv ps test = do
   it "dh/dh handshake" $ runTest $ \a b -> test (a, IKPQOff) (b, PQSupportOff)
   it "dh/pq handshake" $ runTest $ \a b -> test (a, IKPQOff) (b, PQSupportOn)
   it "pq/dh handshake" $ runTest $ \a b -> test (a, IKPQOn) (b, PQSupportOff)
@@ -548,14 +548,14 @@ pqMatrix2_ pqInv t test = do
     it "pq-inv/dh handshake" $ runTest $ \a b -> test (a, IKUsePQ) (b, PQSupportOff)
     it "pq-inv/pq handshake" $ runTest $ \a b -> test (a, IKUsePQ) (b, PQSupportOn)
   where
-    runTest = withSmpServerProxy t . runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3
+    runTest = withSmpServerProxy ps . runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 (initAgentServersProxy SPMAlways SPFProhibit) 3
 
 testPQMatrix3 ::
   HasCallStack =>
-  ATransport ->
+  (ATransport, AStoreType) ->
   (HasCallStack => (AgentClient, InitialKeys) -> (AgentClient, PQSupport) -> (AgentClient, PQSupport) -> AgentMsgId -> IO ()) ->
   Spec
-testPQMatrix3 t test = do
+testPQMatrix3 ps test = do
   it "dh" $ runTest $ \a b c -> test (a, IKPQOff) (b, PQSupportOff) (c, PQSupportOff)
   it "dh/dh/pq" $ runTest $ \a b c -> test (a, IKPQOff) (b, PQSupportOff) (c, PQSupportOn)
   it "dh/pq/dh" $ runTest $ \a b c -> test (a, IKPQOff) (b, PQSupportOn) (c, PQSupportOff)
@@ -566,7 +566,7 @@ testPQMatrix3 t test = do
   it "pq" $ runTest $ \a b c -> test (a, IKPQOn) (b, PQSupportOn) (c, PQSupportOn)
   where
     runTest test' =
-      withSmpServerProxy t $
+      withSmpServerProxy ps $
         runTestCfgServers2 agentProxyCfgV8 agentProxyCfgV8 servers 3 $ \a b baseMsgId ->
           withAgent 3 agentProxyCfgV8 servers testDB3 $ \c -> test' a b c baseMsgId
     servers = initAgentServersProxy SPMAlways SPFProhibit
@@ -1009,10 +1009,10 @@ testAsyncBothOffline = do
     liftIO $ disposeAgentClient alice'
     liftIO $ disposeAgentClient bob'
 
-testAsyncServerOffline :: HasCallStack => ATransport -> IO ()
-testAsyncServerOffline t = withAgentClients2 $ \alice bob -> do
+testAsyncServerOffline :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testAsyncServerOffline ps = withAgentClients2 $ \alice bob -> do
   -- create connection and shutdown the server
-  (bobId, cReq) <- withSmpServerStoreLogOn t testPort $ \_ ->
+  (bobId, cReq) <- withSmpServerStoreLogOn ps testPort $ \_ ->
     runRight $ createConnection alice 1 True SCMInvitation Nothing SMSubscribe
   -- connection fails
   Left (BROKER _ NETWORK) <- runExceptT $ joinConnection bob 1 True cReq "bob's connInfo" SMSubscribe
@@ -1020,7 +1020,7 @@ testAsyncServerOffline t = withAgentClients2 $ \alice bob -> do
   srv `shouldBe` testSMPServer
   conns `shouldBe` [bobId]
   -- connection succeeds after server start
-  withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+  withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
     ("", "", UP srv1 conns1) <- nGet alice
     liftIO $ do
       srv1 `shouldBe` testSMPServer
@@ -1034,14 +1034,14 @@ testAsyncServerOffline t = withAgentClients2 $ \alice bob -> do
     get bob ##> ("", aliceId, CON)
     exchangeGreetings alice bobId bob aliceId
 
-testAllowConnectionClientRestart :: HasCallStack => ATransport -> IO ()
-testAllowConnectionClientRestart t = do
+testAllowConnectionClientRestart :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testAllowConnectionClientRestart ps@(t, ASType qsType _) = do
   let initAgentServersSrv2 = initAgentServers {smp = userServers [testSMPServer2]}
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServersSrv2 testDB2
-  withSmpServerStoreLogOn t testPort $ \_ -> do
+  withSmpServerStoreLogOn ps testPort $ \_ -> do
     (aliceId, bobId, confId) <-
-      withSmpServerConfigOn t cfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \_ -> do
+      withSmpServerConfigOn t (cfgJ2QS qsType) testPort2 $ \_ -> do
         runRight $ do
           (bobId, qInfo) <- createConnection alice 1 True SCMInvitation Nothing SMSubscribe
           (aliceId, sqSecured) <- joinConnection bob 1 True qInfo "bob's connInfo" SMSubscribe
@@ -1063,7 +1063,7 @@ testAllowConnectionClientRestart t = do
     alice2 <- getSMPAgentClient' 3 agentCfg initAgentServers testDB
     runRight_ $ subscribeConnection alice2 bobId
     threadDelay 500000
-    withSmpServerConfigOn t cfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \_ -> do
+    withSmpServerConfigOn t (cfgJ2QS qsType) testPort2 $ \_ -> do
       runRight $ do
         ("", "", UP _ _) <- nGet bob
         get alice2 ##> ("", bobId, CON)
@@ -1073,11 +1073,11 @@ testAllowConnectionClientRestart t = do
     disposeAgentClient alice2
     disposeAgentClient bob
 
-testIncreaseConnAgentVersion :: HasCallStack => ATransport -> IO ()
-testIncreaseConnAgentVersion t = do
+testIncreaseConnAgentVersion :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testIncreaseConnAgentVersion ps = do
   alice <- getSMPAgentClient' 1 agentCfg {smpAgentVRange = mkVersionRange 1 2} initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg {smpAgentVRange = mkVersionRange 1 2} initAgentServers testDB2
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aliceId, bobId) <- runRight $ do
       (aliceId, bobId) <- makeConnection_ PQSupportOff False alice bob
       exchangeGreetingsMsgId_ PQEncOff 2 alice bobId bob aliceId
@@ -1138,11 +1138,11 @@ checkVersion c connId v = do
   ConnectionStats {connAgentVersion} <- getConnectionServers c connId
   liftIO $ connAgentVersion `shouldBe` VersionSMPA v
 
-testIncreaseConnAgentVersionMaxCompatible :: HasCallStack => ATransport -> IO ()
-testIncreaseConnAgentVersionMaxCompatible t = do
+testIncreaseConnAgentVersionMaxCompatible :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testIncreaseConnAgentVersionMaxCompatible ps = do
   alice <- getSMPAgentClient' 1 agentCfg {smpAgentVRange = mkVersionRange 1 2} initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg {smpAgentVRange = mkVersionRange 1 2} initAgentServers testDB2
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aliceId, bobId) <- runRight $ do
       (aliceId, bobId) <- makeConnection_ PQSupportOff False alice bob
       exchangeGreetingsMsgId_ PQEncOff 2 alice bobId bob aliceId
@@ -1168,11 +1168,11 @@ testIncreaseConnAgentVersionMaxCompatible t = do
     disposeAgentClient alice2
     disposeAgentClient bob2
 
-testIncreaseConnAgentVersionStartDifferentVersion :: HasCallStack => ATransport -> IO ()
-testIncreaseConnAgentVersionStartDifferentVersion t = do
+testIncreaseConnAgentVersionStartDifferentVersion :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testIncreaseConnAgentVersionStartDifferentVersion ps = do
   alice <- getSMPAgentClient' 1 agentCfg {smpAgentVRange = mkVersionRange 1 2} initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg {smpAgentVRange = mkVersionRange 1 3} initAgentServers testDB2
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aliceId, bobId) <- runRight $ do
       (aliceId, bobId) <- makeConnection_ PQSupportOff False alice bob
       exchangeGreetingsMsgId_ PQEncOff 2 alice bobId bob aliceId
@@ -1194,12 +1194,12 @@ testIncreaseConnAgentVersionStartDifferentVersion t = do
     disposeAgentClient alice2
     disposeAgentClient bob
 
-testDeliverClientRestart :: HasCallStack => ATransport -> IO ()
-testDeliverClientRestart t = do
+testDeliverClientRestart :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testDeliverClientRestart ps = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
 
-  (aliceId, bobId) <- withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  (aliceId, bobId) <- withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     runRight $ do
       (aliceId, bobId) <- makeConnection alice bob
       exchangeGreetings alice bobId bob aliceId
@@ -1214,7 +1214,7 @@ testDeliverClientRestart t = do
 
   bob2 <- getSMPAgentClient' 3 agentCfg initAgentServers testDB2
 
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     runRight_ $ do
       ("", "", UP _ _) <- nGet alice
 
@@ -1225,11 +1225,11 @@ testDeliverClientRestart t = do
   disposeAgentClient alice
   disposeAgentClient bob2
 
-testDuplicateMessage :: HasCallStack => ATransport -> IO ()
-testDuplicateMessage t = do
+testDuplicateMessage :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testDuplicateMessage ps = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
-  (aliceId, bobId, bob1) <- withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  (aliceId, bobId, bob1) <- withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aliceId, bobId) <- runRight $ makeConnection alice bob
     runRight_ $ do
       2 <- sendMessage alice bobId SMP.noMsgFlags "hello"
@@ -1264,7 +1264,7 @@ testDuplicateMessage t = do
   alice2 <- getSMPAgentClient' 4 agentCfg initAgentServers testDB
   bob2 <- getSMPAgentClient' 5 agentCfg initAgentServers testDB2
 
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     runRight_ $ do
       subscribeConnection bob2 aliceId
       subscribeConnection alice2 bobId
@@ -1277,8 +1277,8 @@ testDuplicateMessage t = do
   disposeAgentClient alice2
   disposeAgentClient bob2
 
-testSkippedMessages :: HasCallStack => ATransport -> IO ()
-testSkippedMessages t = do
+testSkippedMessages :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testSkippedMessages (t, msType) = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
   (aliceId, bobId) <- withSmpServerConfigOn t cfg' testPort $ \_ -> do
@@ -1326,12 +1326,12 @@ testSkippedMessages t = do
   disposeAgentClient alice2
   disposeAgentClient bob2
   where
-    cfg' = cfg {msgStoreType = AMSType SMSMemory, storeMsgsFile = Nothing}
+    cfg' = (cfgMS msType) {serverStoreCfg = ASSCfg SQSMemory SMSMemory $ SSCMemory $ Just $ StorePaths testStoreLogFile Nothing}
 
-testDeliveryAfterSubscriptionError :: HasCallStack => ATransport -> IO ()
-testDeliveryAfterSubscriptionError t = do
+testDeliveryAfterSubscriptionError :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testDeliveryAfterSubscriptionError ps = do
   (aId, bId) <- withAgentClients2 $ \a b -> do
-    (aId, bId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ makeConnection a b
+    (aId, bId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ makeConnection a b
     nGet a =##> \case ("", "", DOWN _ [c]) -> c == bId; _ -> False
     nGet b =##> \case ("", "", DOWN _ [c]) -> c == aId; _ -> False
     2 <- runRight $ sendMessage a bId SMP.noMsgFlags "hello"
@@ -1341,14 +1341,14 @@ testDeliveryAfterSubscriptionError t = do
   withAgentClients2 $ \a b -> do
     Left (BROKER _ NETWORK) <- runExceptT $ subscribeConnection a bId
     Left (BROKER _ NETWORK) <- runExceptT $ subscribeConnection b aId
-    withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+    withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
       withUP a bId $ \case ("", c, SENT 2) -> c == bId; _ -> False
       withUP b aId $ \case ("", c, Msg "hello") -> c == aId; _ -> False
       ackMessage b aId 2 Nothing
 
-testMsgDeliveryQuotaExceeded :: HasCallStack => ATransport -> IO ()
-testMsgDeliveryQuotaExceeded t =
-  withAgentClients2 $ \a b -> withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+testMsgDeliveryQuotaExceeded :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testMsgDeliveryQuotaExceeded ps =
+  withAgentClients2 $ \a b -> withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
     (aId, bId) <- makeConnection a b
     (aId', bId') <- makeConnection a b
     forM_ ([1 .. 4] :: [Int]) $ \i -> do
@@ -1374,27 +1374,27 @@ testMsgDeliveryQuotaExceeded t =
     get a =##> \case ("", c, SENT 6) -> bId == c; _ -> False
     liftIO $ concurrently_ (noMessages a "no more events") (noMessages b "no more events")
 
-testExpireMessage :: HasCallStack => ATransport -> IO ()
-testExpireMessage t =
+testExpireMessage :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testExpireMessage ps =
   withAgent 1 agentCfg {messageTimeout = 1.5, messageRetryInterval = fastMessageRetryInterval} initAgentServers testDB $ \a ->
     withAgent 2 agentCfg initAgentServers testDB2 $ \b -> do
-      (aId, bId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ makeConnection a b
+      (aId, bId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ makeConnection a b
       nGet a =##> \case ("", "", DOWN _ [c]) -> c == bId; _ -> False
       nGet b =##> \case ("", "", DOWN _ [c]) -> c == aId; _ -> False
       2 <- runRight $ sendMessage a bId SMP.noMsgFlags "1"
       threadDelay 1500000
       3 <- runRight $ sendMessage a bId SMP.noMsgFlags "2" -- this won't expire
       get a =##> \case ("", c, MERR 2 (BROKER _ e)) -> bId == c && (e == TIMEOUT || e == NETWORK); _ -> False
-      withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+      withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
         withUP a bId $ \case ("", _, SENT 3) -> True; _ -> False
         withUP b aId $ \case ("", _, MsgErr 2 (MsgSkipped 2 2) "2") -> True; _ -> False
         ackMessage b aId 2 Nothing
 
-testExpireManyMessages :: HasCallStack => ATransport -> IO ()
-testExpireManyMessages t =
+testExpireManyMessages :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testExpireManyMessages ps =
   withAgent 1 agentCfg {messageTimeout = 2, messageRetryInterval = fastMessageRetryInterval} initAgentServers testDB $ \a ->
     withAgent 2 agentCfg initAgentServers testDB2 $ \b -> do
-      (aId, bId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ makeConnection a b
+      (aId, bId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ makeConnection a b
       runRight_ $ do
         nGet a =##> \case ("", "", DOWN _ [c]) -> c == bId; _ -> False
         nGet b =##> \case ("", "", DOWN _ [c]) -> c == aId; _ -> False
@@ -1415,7 +1415,7 @@ testExpireManyMessages t =
           ("", c, MERRS [3, 4] (BROKER _ e)) ->
             liftIO $ expected c e `shouldBe` True
           r -> error $ show r
-      withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+      withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
         withUP a bId $ \case ("", _, SENT 5) -> True; _ -> False
         withUP b aId $ \case ("", _, MsgErr 2 (MsgSkipped 2 4) "4") -> True; _ -> False
         ackMessage b aId 2 Nothing
@@ -1429,8 +1429,8 @@ withUP a bId p =
         \case (corrId, c, AEvt SAEConn cmd) -> c == bId && p (corrId, c, cmd); _ -> False
       ]
 
-testExpireMessageQuota :: HasCallStack => ATransport -> IO ()
-testExpireMessageQuota t = withSmpServerConfigOn t cfg {msgQueueQuota = 1, maxJournalMsgCount = 2} testPort $ \_ -> do
+testExpireMessageQuota :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testExpireMessageQuota (t, msType) = withSmpServerConfigOn t (cfgMS msType) {msgQueueQuota = 1, maxJournalMsgCount = 2} testPort $ \_ -> do
   a <- getSMPAgentClient' 1 agentCfg {quotaExceededTimeout = 1, messageRetryInterval = fastMessageRetryInterval} initAgentServers testDB
   b <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
   (aId, bId) <- runRight $ do
@@ -1455,8 +1455,8 @@ testExpireMessageQuota t = withSmpServerConfigOn t cfg {msgQueueQuota = 1, maxJo
     ackMessage b' aId 4 Nothing
   disposeAgentClient a
 
-testExpireManyMessagesQuota :: ATransport -> IO ()
-testExpireManyMessagesQuota t = withSmpServerConfigOn t cfg {msgQueueQuota = 1, maxJournalMsgCount = 2} testPort $ \_ -> do
+testExpireManyMessagesQuota :: (ATransport, AStoreType) -> IO ()
+testExpireManyMessagesQuota (t, msType) = withSmpServerConfigOn t (cfgMS msType) {msgQueueQuota = 1, maxJournalMsgCount = 2} testPort $ \_ -> do
   a <- getSMPAgentClient' 1 agentCfg {quotaExceededTimeout = 2, messageRetryInterval = fastMessageRetryInterval} initAgentServers testDB
   b <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
   (aId, bId) <- runRight $ do
@@ -1492,9 +1492,9 @@ testExpireManyMessagesQuota t = withSmpServerConfigOn t cfg {msgQueueQuota = 1,
     ackMessage b' aId 4 Nothing
   disposeAgentClient a
 
-testRatchetSync :: HasCallStack => ATransport -> IO ()
-testRatchetSync t = withAgentClients2 $ \alice bob ->
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+testRatchetSync :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testRatchetSync ps = withAgentClients2 $ \alice bob ->
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aliceId, bobId, bob2) <- setupDesynchronizedRatchet alice bob
     runRight $ do
       ConnectionStats {ratchetSyncState} <- synchronizeRatchet bob2 aliceId PQSupportOn False
@@ -1566,9 +1566,9 @@ ratchetSyncP' cId rss = \case
     cId' == cId && rss' == rss && ratchetSyncState == rss
   _ -> False
 
-testRatchetSyncServerOffline :: HasCallStack => ATransport -> IO ()
-testRatchetSyncServerOffline t = withAgentClients2 $ \alice bob -> do
-  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn t testPort $ \_ ->
+testRatchetSyncServerOffline :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testRatchetSyncServerOffline ps = withAgentClients2 $ \alice bob -> do
+  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn ps testPort $ \_ ->
     setupDesynchronizedRatchet alice bob
 
   ("", "", DOWN _ _) <- nGet alice
@@ -1577,7 +1577,7 @@ testRatchetSyncServerOffline t = withAgentClients2 $ \alice bob -> do
   ConnectionStats {ratchetSyncState} <- runRight $ synchronizeRatchet bob2 aliceId PQSupportOn False
   liftIO $ ratchetSyncState `shouldBe` RSStarted
 
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     concurrently_
       (getInAnyOrder alice [ratchetSyncP' bobId RSAgreed, serverUpP])
       (getInAnyOrder bob2 [ratchetSyncP' aliceId RSAgreed, serverUpP])
@@ -1592,11 +1592,11 @@ serverUpP = \case
   ("", "", AEvt SAENone (UP _ _)) -> True
   _ -> False
 
-testRatchetSyncClientRestart :: HasCallStack => ATransport -> IO ()
-testRatchetSyncClientRestart t = do
+testRatchetSyncClientRestart :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testRatchetSyncClientRestart ps = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
-  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn t testPort $ \_ ->
+  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn ps testPort $ \_ ->
     setupDesynchronizedRatchet alice bob
   ("", "", DOWN _ _) <- nGet alice
   ("", "", DOWN _ _) <- nGet bob2
@@ -1604,7 +1604,7 @@ testRatchetSyncClientRestart t = do
   ratchetSyncState `shouldBe` RSStarted
   disposeAgentClient bob2
   bob3 <- getSMPAgentClient' 3 agentCfg initAgentServers testDB2
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     runRight_ $ do
       ("", "", UP _ _) <- nGet alice
       subscribeConnection bob3 aliceId
@@ -1617,11 +1617,11 @@ testRatchetSyncClientRestart t = do
   disposeAgentClient bob
   disposeAgentClient bob3
 
-testRatchetSyncSuspendForeground :: HasCallStack => ATransport -> IO ()
-testRatchetSyncSuspendForeground t = do
+testRatchetSyncSuspendForeground :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testRatchetSyncSuspendForeground ps = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
-  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn t testPort $ \_ ->
+  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn ps testPort $ \_ ->
     setupDesynchronizedRatchet alice bob
 
   ("", "", DOWN _ _) <- nGet alice
@@ -1634,7 +1634,7 @@ testRatchetSyncSuspendForeground t = do
   threadDelay 100000
   foregroundAgent bob2
 
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     concurrently_
       (getInAnyOrder alice [ratchetSyncP' bobId RSAgreed, serverUpP])
       (getInAnyOrder bob2 [ratchetSyncP' aliceId RSAgreed, serverUpP])
@@ -1646,11 +1646,11 @@ testRatchetSyncSuspendForeground t = do
   disposeAgentClient bob
   disposeAgentClient bob2
 
-testRatchetSyncSimultaneous :: HasCallStack => ATransport -> IO ()
-testRatchetSyncSimultaneous t = do
+testRatchetSyncSimultaneous :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testRatchetSyncSimultaneous ps = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bob <- getSMPAgentClient' 2 agentCfg initAgentServers testDB2
-  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn t testPort $ \_ ->
+  (aliceId, bobId, bob2) <- withSmpServerStoreMsgLogOn ps testPort $ \_ ->
     setupDesynchronizedRatchet alice bob
 
   ("", "", DOWN _ _) <- nGet alice
@@ -1662,7 +1662,7 @@ testRatchetSyncSimultaneous t = do
   ConnectionStats {ratchetSyncState = aRSS} <- runRight $ synchronizeRatchet alice bobId PQSupportOn True
   liftIO $ aRSS `shouldBe` RSStarted
 
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     concurrently_
       (getInAnyOrder alice [ratchetSyncP' bobId RSAgreed, serverUpP])
       (getInAnyOrder bob2 [ratchetSyncP' aliceId RSAgreed, serverUpP])
@@ -1773,9 +1773,9 @@ makeConnectionForUsers_ pqSupport sqSecured alice aliceUserId bob bobUserId = do
   get bob ##> ("", aliceId, A.CON pqEnc)
   pure (aliceId, bobId)
 
-testInactiveNoSubs :: ATransport -> IO ()
-testInactiveNoSubs t = do
-  let cfg' = cfg {inactiveClientExpiration = Just ExpirationConfig {ttl = 1, checkInterval = 1}}
+testInactiveNoSubs :: (ATransport, AStoreType) -> IO ()
+testInactiveNoSubs (t, msType) = do
+  let cfg' = (cfgMS msType) {inactiveClientExpiration = Just ExpirationConfig {ttl = 1, checkInterval = 1}}
   withSmpServerConfigOn t cfg' testPort $ \_ ->
     withAgent 1 agentCfg initAgentServers testDB $ \alice -> do
       runRight_ . void $ createConnection alice 1 True SCMInvitation Nothing SMOnlyCreate -- do not subscribe to pass noSubscriptions check
@@ -1783,9 +1783,9 @@ testInactiveNoSubs t = do
       Just (_, _, AEvt SAENone (DISCONNECT _ _)) <- timeout 5000000 $ atomically (readTBQueue $ subQ alice)
       pure ()
 
-testInactiveWithSubs :: ATransport -> IO ()
-testInactiveWithSubs t = do
-  let cfg' = cfg {inactiveClientExpiration = Just ExpirationConfig {ttl = 1, checkInterval = 1}}
+testInactiveWithSubs :: (ATransport, AStoreType) -> IO ()
+testInactiveWithSubs (t, msType) = do
+  let cfg' = (cfgMS msType) {inactiveClientExpiration = Just ExpirationConfig {ttl = 1, checkInterval = 1}}
   withSmpServerConfigOn t cfg' testPort $ \_ ->
     withAgent 1 agentCfg initAgentServers testDB $ \alice -> do
       runRight_ . void $ createConnection alice 1 True SCMInvitation Nothing SMSubscribe
@@ -1794,9 +1794,9 @@ testInactiveWithSubs t = do
       -- and after 2 sec of inactivity no DOWN is sent as we have a live subscription
       liftIO $ timeout 1200000 (get alice) `shouldReturn` Nothing
 
-testActiveClientNotDisconnected :: ATransport -> IO ()
-testActiveClientNotDisconnected t = do
-  let cfg' = cfg {inactiveClientExpiration = Just ExpirationConfig {ttl = 1, checkInterval = 1}}
+testActiveClientNotDisconnected :: (ATransport, AStoreType) -> IO ()
+testActiveClientNotDisconnected (t, msType) = do
+  let cfg' = (cfgMS msType) {inactiveClientExpiration = Just ExpirationConfig {ttl = 1, checkInterval = 1}}
   withSmpServerConfigOn t cfg' testPort $ \_ ->
     withAgent 1 agentCfg initAgentServers testDB $ \alice -> do
       ts <- getSystemTime
@@ -1837,9 +1837,9 @@ testSuspendingAgent =
     liftIO $ foregroundAgent b
     get b =##> \case ("", c, Msg "hello 2") -> c == aId; _ -> False
 
-testSuspendingAgentCompleteSending :: ATransport -> IO ()
-testSuspendingAgentCompleteSending t = withAgentClients2 $ \a b -> do
-  (aId, bId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+testSuspendingAgentCompleteSending :: (ATransport, AStoreType) -> IO ()
+testSuspendingAgentCompleteSending ps = withAgentClients2 $ \a b -> do
+  (aId, bId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
     (aId, bId) <- makeConnection a b
     2 <- sendMessage a bId SMP.noMsgFlags "hello"
     get a ##> ("", bId, SENT 2)
@@ -1853,7 +1853,7 @@ testSuspendingAgentCompleteSending t = withAgentClients2 $ \a b -> do
     4 <- sendMessage b aId SMP.noMsgFlags "how are you?"
     liftIO $ threadDelay 100000
     liftIO $ suspendAgent b 5000000
-  withSmpServerStoreLogOn t testPort $ \_ -> runRight_ @AgentErrorType $ do
+  withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ @AgentErrorType $ do
     -- there will be no UP event for b, because re-subscriptions are suspended until the agent is in foreground
     get b =##> \case ("", c, SENT 3) -> c == aId; _ -> False
     get b =##> \case ("", c, SENT 4) -> c == aId; _ -> False
@@ -1868,9 +1868,9 @@ testSuspendingAgentCompleteSending t = withAgentClients2 $ \a b -> do
     get a =##> \case ("", c, Msg "how are you?") -> c == bId; _ -> False
     ackMessage a bId 4 Nothing
 
-testSuspendingAgentTimeout :: ATransport -> IO ()
-testSuspendingAgentTimeout t = withAgentClients2 $ \a b -> do
-  (aId, _) <- withSmpServer t . runRight $ do
+testSuspendingAgentTimeout :: (ATransport, AStoreType) -> IO ()
+testSuspendingAgentTimeout ps = withAgentClients2 $ \a b -> do
+  (aId, _) <- withSmpServer ps . runRight $ do
     (aId, bId) <- makeConnection a b
     2 <- sendMessage a bId SMP.noMsgFlags "hello"
     get a ##> ("", bId, SENT 2)
@@ -1887,8 +1887,8 @@ testSuspendingAgentTimeout t = withAgentClients2 $ \a b -> do
     ("", "", SUSPENDED) <- nGet b
     pure ()
 
-testBatchedSubscriptions :: Int -> Int -> ATransport -> IO ()
-testBatchedSubscriptions nCreate nDel t =
+testBatchedSubscriptions :: Int -> Int -> (ATransport, AStoreType) -> IO ()
+testBatchedSubscriptions nCreate nDel ps@(t, ASType qsType _) =
   withAgentClientsCfgServers2 agentCfg agentCfg initAgentServers2 $ \a b -> do
     conns <- runServers $ do
       conns <- replicateM nCreate $ makeConnection_ PQSupportOff True a b
@@ -1944,8 +1944,8 @@ testBatchedSubscriptions nCreate nDel t =
         M.keys r `shouldMatchList` cs
     runServers :: ExceptT AgentErrorType IO a -> IO a
     runServers a = do
-      withSmpServerStoreLogOn t testPort $ \t1 -> do
-        res <- withSmpServerConfigOn t cfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \t2 ->
+      withSmpServerStoreLogOn ps testPort $ \t1 -> do
+        res <- withSmpServerConfigOn t (cfgJ2QS qsType) testPort2 $ \t2 ->
           runRight a `finally` killThread t2
         killThread t1
         pure res
@@ -2079,14 +2079,14 @@ testAsyncCommands sqSecured alice bob baseId =
   where
     msgId = subtract baseId
 
-testAsyncCommandsRestore :: ATransport -> IO ()
-testAsyncCommandsRestore t = do
+testAsyncCommandsRestore :: (ATransport, AStoreType) -> IO ()
+testAsyncCommandsRestore ps = do
   alice <- getSMPAgentClient' 1 agentCfg initAgentServers testDB
   bobId <- runRight $ createConnectionAsync alice 1 "1" True SCMInvitation (IKNoPQ PQSupportOn) SMSubscribe
   liftIO $ noMessages alice "alice doesn't receive INV because server is down"
   disposeAgentClient alice
   withAgent 2 agentCfg initAgentServers testDB $ \alice' ->
-    withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+    withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
       subscribeConnection alice' bobId
       get alice' =##> \case ("1", _, INV _) -> True; _ -> False
       pure ()
@@ -2130,10 +2130,10 @@ testAcceptContactAsync sqSecured alice bob baseId =
   where
     msgId = subtract baseId
 
-testDeleteConnectionAsync :: ATransport -> IO ()
-testDeleteConnectionAsync t =
+testDeleteConnectionAsync :: (ATransport, AStoreType) -> IO ()
+testDeleteConnectionAsync ps =
   withAgent 1 agentCfg {initialCleanupDelay = 10000, cleanupInterval = 10000, deleteErrorCount = 3} initAgentServers testDB $ \a -> do
-    connIds <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+    connIds <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
       (bId1, _inv) <- createConnection a 1 True SCMInvitation Nothing SMSubscribe
       (bId2, _inv) <- createConnection a 1 True SCMInvitation Nothing SMSubscribe
       (bId3, _inv) <- createConnection a 1 True SCMInvitation Nothing SMSubscribe
@@ -2146,9 +2146,9 @@ testDeleteConnectionAsync t =
       get a =##> \case ("", "", DEL_CONNS cs) -> length cs == 3 && all (`elem` connIds) cs; _ -> False
       liftIO $ noMessages a "nothing else should be delivered to alice"
 
-testWaitDeliveryNoPending :: ATransport -> IO ()
-testWaitDeliveryNoPending t = withAgentClients2 $ \alice bob ->
-  withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+testWaitDeliveryNoPending :: (ATransport, AStoreType) -> IO ()
+testWaitDeliveryNoPending ps = withAgentClients2 $ \alice bob ->
+  withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
     (aliceId, bobId) <- makeConnection alice bob
 
     1 <- msgId <$> sendMessage alice bobId SMP.noMsgFlags "hello"
@@ -2174,11 +2174,11 @@ testWaitDeliveryNoPending t = withAgentClients2 $ \alice bob ->
     baseId = 1
     msgId = subtract baseId
 
-testWaitDelivery :: ATransport -> IO ()
-testWaitDelivery t =
+testWaitDelivery :: (ATransport, AStoreType) -> IO ()
+testWaitDelivery ps =
   withAgent 1 agentCfg {initialCleanupDelay = 10000, cleanupInterval = 10000, deleteErrorCount = 3} initAgentServers testDB $ \alice ->
     withAgent 2 agentCfg initAgentServers testDB2 $ \bob -> do
-      (aliceId, bobId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+      (aliceId, bobId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
         (aliceId, bobId) <- makeConnection alice bob
 
         1 <- msgId <$> sendMessage alice bobId SMP.noMsgFlags "hello"
@@ -2203,7 +2203,7 @@ testWaitDelivery t =
         liftIO $ noMessages alice "nothing else should be delivered to alice"
         liftIO $ noMessages bob "nothing else should be delivered to bob"
 
-      withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+      withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
         get alice ##> ("", bobId, SENT $ baseId + 3)
         get alice ##> ("", bobId, SENT $ baseId + 4)
         get alice =##> \case ("", "", DEL_CONNS [cId]) -> cId == bobId; _ -> False
@@ -2228,11 +2228,11 @@ testWaitDelivery t =
     baseId = 1
     msgId = subtract baseId
 
-testWaitDeliveryAUTHErr :: ATransport -> IO ()
-testWaitDeliveryAUTHErr t =
+testWaitDeliveryAUTHErr :: (ATransport, AStoreType) -> IO ()
+testWaitDeliveryAUTHErr ps =
   withAgent 1 agentCfg {initialCleanupDelay = 10000, cleanupInterval = 10000, deleteErrorCount = 3} initAgentServers testDB $ \alice ->
     withAgent 2 agentCfg initAgentServers testDB2 $ \bob -> do
-      (_aliceId, bobId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+      (_aliceId, bobId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
         (aliceId, bobId) <- makeConnection alice bob
 
         1 <- msgId <$> sendMessage alice bobId SMP.noMsgFlags "hello"
@@ -2260,7 +2260,7 @@ testWaitDeliveryAUTHErr t =
         liftIO $ noMessages alice "nothing else should be delivered to alice"
         liftIO $ noMessages bob "nothing else should be delivered to bob"
 
-      withSmpServerStoreLogOn t testPort $ \_ -> do
+      withSmpServerStoreLogOn ps testPort $ \_ -> do
         get alice =##> \case ("", cId, MERR mId (SMP _ AUTH)) -> cId == bobId && mId == (baseId + 3); _ -> False
         get alice =##> \case ("", cId, MERR mId (SMP _ AUTH)) -> cId == bobId && mId == (baseId + 4); _ -> False
         get alice =##> \case ("", "", DEL_CONNS [cId]) -> cId == bobId; _ -> False
@@ -2271,11 +2271,11 @@ testWaitDeliveryAUTHErr t =
     baseId = 1
     msgId = subtract baseId
 
-testWaitDeliveryTimeout :: ATransport -> IO ()
-testWaitDeliveryTimeout t =
+testWaitDeliveryTimeout :: (ATransport, AStoreType) -> IO ()
+testWaitDeliveryTimeout ps =
   withAgent 1 agentCfg {connDeleteDeliveryTimeout = 1, initialCleanupDelay = 10000, cleanupInterval = 10000, deleteErrorCount = 3} initAgentServers testDB $ \alice ->
     withAgent 2 agentCfg initAgentServers testDB2 $ \bob -> do
-      (aliceId, bobId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+      (aliceId, bobId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
         (aliceId, bobId) <- makeConnection alice bob
 
         1 <- msgId <$> sendMessage alice bobId SMP.noMsgFlags "hello"
@@ -2303,7 +2303,7 @@ testWaitDeliveryTimeout t =
 
       liftIO $ threadDelay 100000
 
-      withSmpServerStoreLogOn t testPort $ \_ -> do
+      withSmpServerStoreLogOn ps testPort $ \_ -> do
         nGet bob =##> \case ("", "", UP _ [cId]) -> cId == aliceId; _ -> False
         liftIO $ noMessages alice "nothing else should be delivered to alice"
         liftIO $ noMessages bob "nothing else should be delivered to bob"
@@ -2311,11 +2311,11 @@ testWaitDeliveryTimeout t =
     baseId = 1
     msgId = subtract baseId
 
-testWaitDeliveryTimeout2 :: ATransport -> IO ()
-testWaitDeliveryTimeout2 t =
+testWaitDeliveryTimeout2 :: (ATransport, AStoreType) -> IO ()
+testWaitDeliveryTimeout2 ps =
   withAgent 1 agentCfg {connDeleteDeliveryTimeout = 2, messageRetryInterval = fastMessageRetryInterval, initialCleanupDelay = 10000, cleanupInterval = 10000, deleteErrorCount = 3} initAgentServers testDB $ \alice ->
     withAgent 2 agentCfg initAgentServers testDB2 $ \bob -> do
-      (aliceId, bobId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+      (aliceId, bobId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
         (aliceId, bobId) <- makeConnection alice bob
 
         1 <- msgId <$> sendMessage alice bobId SMP.noMsgFlags "hello"
@@ -2341,7 +2341,7 @@ testWaitDeliveryTimeout2 t =
         liftIO $ noMessages alice "nothing else should be delivered to alice"
         liftIO $ noMessages bob "nothing else should be delivered to bob"
 
-      withSmpServerStoreLogOn t testPort $ \_ -> do
+      withSmpServerStoreLogOn ps testPort $ \_ -> do
         get alice ##> ("", bobId, SENT $ baseId + 3)
         -- "message 1" not delivered
 
@@ -2357,12 +2357,12 @@ testWaitDeliveryTimeout2 t =
     baseId = 1
     msgId = subtract baseId
 
-testJoinConnectionAsyncReplyErrorV8 :: HasCallStack => ATransport -> IO ()
-testJoinConnectionAsyncReplyErrorV8 t = do
+testJoinConnectionAsyncReplyErrorV8 :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testJoinConnectionAsyncReplyErrorV8 ps@(t, ASType qsType _) = do
   let initAgentServersSrv2 = initAgentServers {smp = userServers [testSMPServer2]}
   withAgent 1 agentCfgVPrevPQ initAgentServers testDB $ \a ->
     withAgent 2 agentCfgVPrevPQ initAgentServersSrv2 testDB2 $ \b -> do
-      (aId, bId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+      (aId, bId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
         bId <- createConnectionAsync a 1 "1" True SCMInvitation (IKNoPQ PQSupportOn) SMSubscribe
         ("1", bId', INV (ACR _ qInfo)) <- get a
         liftIO $ bId' `shouldBe` bId
@@ -2371,9 +2371,9 @@ testJoinConnectionAsyncReplyErrorV8 t = do
         ConnectionStats {rcvQueuesInfo = [], sndQueuesInfo = [SndQueueInfo {}]} <- getConnectionServers b aId
         pure (aId, bId)
       nGet a =##> \case ("", "", DOWN _ [c]) -> c == bId; _ -> False
-      withSmpServerConfigOn t cfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \_ -> do
+      withSmpServerConfigOn t (cfgJ2QS qsType) testPort2 $ \_ -> do
         get b =##> \case ("2", c, JOINED sqSecured) -> c == aId && not sqSecured; _ -> False
-        confId <- withSmpServerStoreLogOn t testPort $ \_ -> do
+        confId <- withSmpServerStoreLogOn ps testPort $ \_ -> do
           pGet a >>= \case
             ("", "", AEvt _ (UP _ [_])) -> do
               ("", _, CONF confId _ "bob's connInfo") <- get a
@@ -2389,19 +2389,19 @@ testJoinConnectionAsyncReplyErrorV8 t = do
           liftIO $ threadDelay 500000
           ConnectionStats {rcvQueuesInfo = [RcvQueueInfo {}], sndQueuesInfo = [SndQueueInfo {}]} <- getConnectionServers b aId
           pure ()
-        withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+        withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
           nGet a =##> \case ("", "", UP _ [c]) -> c == bId; _ -> False
           get a ##> ("", bId, CON)
           get b ##> ("", aId, INFO "alice's connInfo")
           get b ##> ("", aId, CON)
           exchangeGreetingsMsgId 4 a bId b aId
 
-testJoinConnectionAsyncReplyError :: HasCallStack => ATransport -> IO ()
-testJoinConnectionAsyncReplyError t = do
+testJoinConnectionAsyncReplyError :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testJoinConnectionAsyncReplyError ps@(t, ASType qsType _) = do
   let initAgentServersSrv2 = initAgentServers {smp = userServers [testSMPServer2]}
   withAgent 1 agentCfg initAgentServers testDB $ \a ->
     withAgent 2 agentCfg initAgentServersSrv2 testDB2 $ \b -> do
-      (aId, bId) <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+      (aId, bId) <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
         bId <- createConnectionAsync a 1 "1" True SCMInvitation (IKNoPQ PQSupportOn) SMSubscribe
         ("1", bId', INV (ACR _ qInfo)) <- get a
         liftIO $ bId' `shouldBe` bId
@@ -2410,8 +2410,8 @@ testJoinConnectionAsyncReplyError t = do
         ConnectionStats {rcvQueuesInfo = [], sndQueuesInfo = [SndQueueInfo {}]} <- getConnectionServers b aId
         pure (aId, bId)
       nGet a =##> \case ("", "", DOWN _ [c]) -> c == bId; _ -> False
-      withSmpServerConfigOn t cfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \_ -> do
-        confId <- withSmpServerStoreLogOn t testPort $ \_ -> do
+      withSmpServerConfigOn t (cfgJ2QS qsType) testPort2 $ \_ -> do
+        confId <- withSmpServerStoreLogOn ps testPort $ \_ -> do
           -- both servers need to be online for connection to progress because of SKEY
           get b =##> \case ("2", c, JOINED sqSecured) -> c == aId && sqSecured; _ -> False
           pGet a >>= \case
@@ -2430,7 +2430,7 @@ testJoinConnectionAsyncReplyError t = do
           liftIO $ threadDelay 500000
           ConnectionStats {rcvQueuesInfo = [RcvQueueInfo {}], sndQueuesInfo = [SndQueueInfo {}]} <- getConnectionServers b aId
           pure ()
-        withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+        withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
           nGet a =##> \case ("", "", UP _ [c]) -> c == bId; _ -> False
           get b ##> ("", aId, INFO "alice's connInfo")
           get b ##> ("", aId, CON)
@@ -2463,9 +2463,9 @@ testDeleteUserQuietly =
     exchangeGreetingsMsgId 4 a bId b aId
     liftIO $ noMessages a "nothing else should be delivered to alice"
 
-testUsersNoServer :: HasCallStack => ATransport -> IO ()
-testUsersNoServer t = withAgentClientsCfg2 aCfg agentCfg $ \a b -> do
-  (aId, bId, auId, _aId', bId') <- withSmpServerStoreLogOn t testPort $ \_ -> runRight $ do
+testUsersNoServer :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testUsersNoServer ps = withAgentClientsCfg2 aCfg agentCfg $ \a b -> do
+  (aId, bId, auId, _aId', bId') <- withSmpServerStoreLogOn ps testPort $ \_ -> runRight $ do
     (aId, bId) <- makeConnection a b
     exchangeGreetings a bId b aId
     auId <- createUser a [noAuthSrvCfg testSMPServer] [noAuthSrvCfg testXFTPServer]
@@ -2481,7 +2481,7 @@ testUsersNoServer t = withAgentClientsCfg2 aCfg agentCfg $ \a b -> do
     get a =##> \case ("", "", DEL_CONNS [c]) -> c == bId'; _ -> False
     nGet a =##> \case ("", "", DEL_USER u) -> u == auId; _ -> False
     liftIO $ noMessages a "nothing else should be delivered to alice"
-  withSmpServerStoreLogOn t testPort $ \_ -> runRight_ $ do
+  withSmpServerStoreLogOn ps testPort $ \_ -> runRight_ $ do
     nGet a =##> \case ("", "", UP _ [c]) -> c == bId; _ -> False
     nGet b =##> \case ("", "", UP _ cs) -> length cs == 2; _ -> False
     exchangeGreetingsMsgId 4 a bId b aId
@@ -2898,9 +2898,9 @@ testCreateQueueAuth srvVersion clnt1 clnt2 sqSecured baseId = do
           sndAuthAlg = if srvVersion >= authCmdsSMPVersion && clntVersion >= authCmdsSMPVersion then C.AuthAlg C.SX25519 else C.AuthAlg C.SEd25519
        in getSMPAgentClient' clientId agentCfg {smpCfg, sndAuthAlg} servers db
 
-testSMPServerConnectionTest :: ATransport -> Maybe BasicAuth -> SMPServerWithAuth -> IO (Maybe ProtocolTestFailure)
-testSMPServerConnectionTest t newQueueBasicAuth srv =
-  withSmpServerConfigOn t cfg {newQueueBasicAuth} testPort2 $ \_ -> do
+testSMPServerConnectionTest :: (ATransport, AStoreType) -> Maybe BasicAuth -> SMPServerWithAuth -> IO (Maybe ProtocolTestFailure)
+testSMPServerConnectionTest (t, msType) newQueueBasicAuth srv =
+  withSmpServerConfigOn t (cfgMS msType) {newQueueBasicAuth} testPort2 $ \_ -> do
     -- initially passed server is not running
     withAgent 1 agentCfg initAgentServers testDB $ \a ->
       testProtocolServer a 1 srv
@@ -2933,11 +2933,11 @@ testDeliveryReceipts =
     ackMessage b aId 5 (Just "") `catchError` \case (A.CMD PROHIBITED _) -> pure (); e -> liftIO $ expectationFailure ("unexpected error " <> show e)
     ackMessage b aId 5 Nothing
 
-testDeliveryReceiptsVersion :: HasCallStack => ATransport -> IO ()
-testDeliveryReceiptsVersion t = do
+testDeliveryReceiptsVersion :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testDeliveryReceiptsVersion ps = do
   a <- getSMPAgentClient' 1 agentCfg {smpAgentVRange = mkVersionRange 1 3} initAgentServers testDB
   b <- getSMPAgentClient' 2 agentCfg {smpAgentVRange = mkVersionRange 1 3} initAgentServers testDB2
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aId, bId) <- runRight $ do
       (aId, bId) <- makeConnection_ PQSupportOff False a b
       checkVersion a bId 3
@@ -2986,9 +2986,9 @@ testDeliveryReceiptsVersion t = do
     disposeAgentClient a'
     disposeAgentClient b'
 
-testDeliveryReceiptsConcurrent :: HasCallStack => ATransport -> IO ()
-testDeliveryReceiptsConcurrent t =
-  withSmpServerConfigOn t cfg {msgQueueQuota = 256, maxJournalMsgCount = 512} testPort $ \_ -> do
+testDeliveryReceiptsConcurrent :: HasCallStack => (ATransport, AStoreType) -> IO ()
+testDeliveryReceiptsConcurrent (t, msType) =
+  withSmpServerConfigOn t (cfgMS msType) {msgQueueQuota = 256, maxJournalMsgCount = 512} testPort $ \_ -> do
     withAgentClients2 $ \a b -> do
       (aId, bId) <- runRight $ makeConnection a b
       t1 <- liftIO getCurrentTime
@@ -3112,7 +3112,7 @@ getSMPAgentClient' clientId cfg' initServers dbPath = do
 
 #if defined(dbPostgres)
 createStore :: String -> IO (Either MigrationError DBStore)
-createStore schema = createAgentStore (DBOpts testDBConnstr schema) MCError
+createStore schema = createAgentStore (DBOpts testDBConnstr (B.pack schema) 1 True) MCError
 
 insertUser :: DBStore -> IO ()
 insertUser st = withTransaction st (`DB.execute_` "INSERT INTO users DEFAULT VALUES")
diff --git a/tests/AgentTests/MigrationTests.hs b/tests/AgentTests/MigrationTests.hs
index 1a879eca7..ae90944f4 100644
--- a/tests/AgentTests/MigrationTests.hs
+++ b/tests/AgentTests/MigrationTests.hs
@@ -13,6 +13,7 @@ import Simplex.Messaging.Agent.Store.Shared
 import System.Random (randomIO)
 import Test.Hspec
 #if defined(dbPostgres)
+import qualified Data.ByteString.Char8 as B
 import Database.PostgreSQL.Simple (fromOnly)
 import Fixtures
 import Simplex.Messaging.Agent.Store.Postgres.Util (dropSchema)
@@ -206,7 +207,9 @@ createStore randSuffix migrations confirmMigrations = do
   let dbOpts =
         DBOpts {
           connstr = testDBConnstr,
-          schema = testSchema randSuffix
+          schema = B.pack $ testSchema randSuffix,
+          poolSize = 1,
+          createSchema = True
         }
   createDBStore dbOpts migrations confirmMigrations
 
diff --git a/tests/AgentTests/NotificationTests.hs b/tests/AgentTests/NotificationTests.hs
index cbca52df1..da85d25aa 100644
--- a/tests/AgentTests/NotificationTests.hs
+++ b/tests/AgentTests/NotificationTests.hs
@@ -59,7 +59,7 @@ import Data.Text.Encoding (encodeUtf8)
 import qualified Data.Text.IO as TIO
 import NtfClient
 import SMPAgentClient (agentCfg, initAgentServers, initAgentServers2, testDB, testDB2, testNtfServer, testNtfServer2)
-import SMPClient (cfg, cfgVPrev, testPort, testPort2, testStoreLogFile2, testStoreMsgsDir2, withSmpServer, withSmpServerConfigOn, withSmpServerStoreLogOn, withSmpServerStoreMsgLogOn, xit'')
+import SMPClient (cfgMS, cfgJ2QS, cfgVPrev, serverStoreConfig, testPort, testPort2, withSmpServer, withSmpServerConfigOn, withSmpServerStoreLogOn, withSmpServerStoreMsgLogOn, xit'')
 import Simplex.Messaging.Agent hiding (createConnection, joinConnection, sendMessage)
 import Simplex.Messaging.Agent.Client (ProtocolTestFailure (..), ProtocolTestStep (..), withStore')
 import Simplex.Messaging.Agent.Env.SQLite (AgentConfig, Env (..), InitialAgentServers)
@@ -77,7 +77,7 @@ import Simplex.Messaging.Notifications.Types (NtfTknAction (..), NtfToken (..))
 import Simplex.Messaging.Parsers (parseAll)
 import Simplex.Messaging.Protocol (ErrorType (AUTH), MsgFlags (MsgFlags), NtfServer, ProtocolServer (..), SMPMsgMeta (..), SubscriptionMode (..))
 import qualified Simplex.Messaging.Protocol as SMP
-import Simplex.Messaging.Server.Env.STM (ServerConfig (..))
+import Simplex.Messaging.Server.Env.STM (AStoreType (..), ServerConfig (..))
 import Simplex.Messaging.Transport (ATransport)
 import Test.Hspec
 import UnliftIO
@@ -87,8 +87,8 @@ import Database.PostgreSQL.Simple.SqlQQ (sql)
 import Database.SQLite.Simple.QQ (sql)
 #endif
 
-notificationTests :: ATransport -> Spec
-notificationTests t = do
+notificationTests :: (ATransport, AStoreType) -> Spec
+notificationTests ps@(t, _) = do
   describe "Managing notification tokens" $ do
     it "should register and verify notification token" $
       withAPNSMockServer $ \apns ->
@@ -133,61 +133,65 @@ notificationTests t = do
       testRunNTFServerTests t srv1 `shouldReturn` Just (ProtocolTestFailure TSConnect $ BROKER (B.unpack $ strEncode srv1) NETWORK)
   describe "Managing notification subscriptions" $ do
     describe "should create notification subscription for existing connection" $
-      testNtfMatrix t testNotificationSubscriptionExistingConnection
+      testNtfMatrix ps testNotificationSubscriptionExistingConnection
     describe "should create notification subscription for new connection" $
-      testNtfMatrix t testNotificationSubscriptionNewConnection
+      testNtfMatrix ps testNotificationSubscriptionNewConnection
     it "should change notifications mode" $
-      withSmpServer t $
+      withSmpServer ps $
         withAPNSMockServer $ \apns ->
           withNtfServer t $ testChangeNotificationsMode apns
     it "should change token" $
-      withSmpServer t $
+      withSmpServer ps $
         withAPNSMockServer $ \apns ->
           withNtfServer t $ testChangeToken apns
   describe "Notifications server store log" $
     it "should save and restore tokens and subscriptions" $
       withAPNSMockServer $ \apns ->
-        testNotificationsStoreLog t apns
+        testNotificationsStoreLog ps apns
   describe "Notifications after SMP server restart" $
     it "should resume subscriptions after SMP server is restarted" $
       withAPNSMockServer $ \apns ->
-        withNtfServer t $ testNotificationsSMPRestart t apns
+        withNtfServer t $ testNotificationsSMPRestart ps apns
   describe "Notifications after SMP server restart" $
     it "should resume batched subscriptions after SMP server is restarted" $
       withAPNSMockServer $ \apns ->
-        withNtfServer t $ testNotificationsSMPRestartBatch 100 t apns
+        withNtfServer t $ testNotificationsSMPRestartBatch 100 ps apns
   describe "should switch notifications to the new queue" $
-    testServerMatrix2 t $ \servers ->
+    testServerMatrix2 ps $ \servers ->
       withAPNSMockServer $ \apns ->
         withNtfServer t $ testSwitchNotifications servers apns
   it "should keep sending notifications for old token" $
-    withSmpServer t $
+    withSmpServer ps $
       withAPNSMockServer $ \apns ->
         withNtfServerOn t ntfTestPort $
           testNotificationsOldToken apns
   it "should update server from new token" $
-    withSmpServer t $
+    withSmpServer ps $
       withAPNSMockServer $ \apns ->
         withNtfServerOn t ntfTestPort2 . withNtfServerThreadOn t ntfTestPort $ \ntf ->
           testNotificationsNewToken apns ntf
 
-testNtfMatrix :: HasCallStack => ATransport -> (APNSMockServer -> AgentMsgId -> AgentClient -> AgentClient -> IO ()) -> Spec
-testNtfMatrix t runTest = do
+testNtfMatrix :: HasCallStack => (ATransport, AStoreType) -> (APNSMockServer -> AgentMsgId -> AgentClient -> AgentClient -> IO ()) -> Spec
+testNtfMatrix ps@(_, msType) runTest = do
   describe "next and current" $ do
-    it "curr servers; curr clients" $ runNtfTestCfg t 1 cfg ntfServerCfg agentCfg agentCfg runTest
-    it "curr servers; prev clients" $ runNtfTestCfg t 3 cfg ntfServerCfg agentCfgVPrevPQ agentCfgVPrevPQ runTest
-    it "prev servers; prev clients" $ runNtfTestCfg t 3 cfgVPrev ntfServerCfgVPrev agentCfgVPrevPQ agentCfgVPrevPQ runTest
-    it "prev servers; curr clients" $ runNtfTestCfg t 1 cfgVPrev ntfServerCfgVPrev agentCfg agentCfg runTest
+    it "curr servers; curr clients" $ runNtfTestCfg ps 1 cfg' ntfServerCfg agentCfg agentCfg runTest
+    it "curr servers; prev clients" $ runNtfTestCfg ps 3 cfg' ntfServerCfg agentCfgVPrevPQ agentCfgVPrevPQ runTest
+    it "prev servers; prev clients" $ runNtfTestCfg ps 3 cfgVPrev' ntfServerCfgVPrev agentCfgVPrevPQ agentCfgVPrevPQ runTest
+    it "prev servers; curr clients" $ runNtfTestCfg ps 1 cfgVPrev' ntfServerCfgVPrev agentCfg agentCfg runTest
     -- servers can be upgraded in any order
-    it "servers: curr SMP, prev NTF; prev clients" $ runNtfTestCfg t 3 cfg ntfServerCfgVPrev agentCfgVPrevPQ agentCfgVPrevPQ runTest
-    it "servers: prev SMP, curr NTF; prev clients" $ runNtfTestCfg t 3 cfgVPrev ntfServerCfg agentCfgVPrevPQ agentCfgVPrevPQ runTest
+    it "servers: curr SMP, prev NTF; prev clients" $ runNtfTestCfg ps 3 cfg' ntfServerCfgVPrev agentCfgVPrevPQ agentCfgVPrevPQ runTest
+    it "servers: prev SMP, curr NTF; prev clients" $ runNtfTestCfg ps 3 cfgVPrev' ntfServerCfg agentCfgVPrevPQ agentCfgVPrevPQ runTest
     -- one of two clients can be upgraded
-    it "servers: curr SMP, curr NTF; clients: curr/prev" $ runNtfTestCfg t 3 cfg ntfServerCfg agentCfg agentCfgVPrevPQ runTest
-    it "servers: curr SMP, curr NTF; clients: prev/curr" $ runNtfTestCfg t 3 cfg ntfServerCfg agentCfgVPrevPQ agentCfg runTest
+    it "servers: curr SMP, curr NTF; clients: curr/prev" $ runNtfTestCfg ps 3 cfg' ntfServerCfg agentCfg agentCfgVPrevPQ runTest
+    it "servers: curr SMP, curr NTF; clients: prev/curr" $ runNtfTestCfg ps 3 cfg' ntfServerCfg agentCfgVPrevPQ agentCfg runTest
+  where
+    cfg' = cfgMS msType
+    cfgVPrev' = cfgVPrev msType
 
-runNtfTestCfg :: HasCallStack => ATransport -> AgentMsgId -> ServerConfig -> NtfServerConfig -> AgentConfig -> AgentConfig -> (APNSMockServer -> AgentMsgId -> AgentClient -> AgentClient -> IO ()) -> IO ()
-runNtfTestCfg t baseId smpCfg ntfCfg aCfg bCfg runTest = do
-  withSmpServerConfigOn t smpCfg testPort $ \_ ->
+runNtfTestCfg :: HasCallStack => (ATransport, AStoreType) -> AgentMsgId -> ServerConfig -> NtfServerConfig -> AgentConfig -> AgentConfig -> (APNSMockServer -> AgentMsgId -> AgentClient -> AgentClient -> IO ()) -> IO ()
+runNtfTestCfg (t, msType) baseId smpCfg ntfCfg aCfg bCfg runTest = do
+  let smpCfg' = smpCfg {serverStoreCfg = serverStoreConfig msType}
+  withSmpServerConfigOn t smpCfg' testPort $ \_ ->
     withAPNSMockServer $ \apns ->
       withNtfServerCfg ntfCfg {transports = [(ntfTestPort, t, False)]} $ \_ ->
         withAgentClientsCfg2 aCfg bCfg $ runTest apns baseId
@@ -746,9 +750,9 @@ testChangeToken apns = withAgent 1 agentCfg initAgentServers testDB2 $ \bob -> d
     baseId = 1
     msgId = subtract baseId
 
-testNotificationsStoreLog :: ATransport -> APNSMockServer -> IO ()
-testNotificationsStoreLog t apns = withAgentClients2 $ \alice bob -> do
-  withSmpServerStoreMsgLogOn t testPort $ \_ -> do
+testNotificationsStoreLog :: (ATransport, AStoreType) -> APNSMockServer -> IO ()
+testNotificationsStoreLog ps@(t, _) apns = withAgentClients2 $ \alice bob -> do
+  withSmpServerStoreMsgLogOn ps testPort $ \_ -> do
     (aliceId, bobId) <- withNtfServerStoreLog t $ \threadId -> runRight $ do
       (aliceId, bobId) <- makeConnection alice bob
       _ <- registerTestToken alice "abcd" NMInstant apns
@@ -779,13 +783,13 @@ testNotificationsStoreLog t apns = withAgentClients2 $ \alice bob -> do
       ackMessage alice bobId 4 Nothing
       noNotifications apns
 
-  withSmpServerStoreMsgLogOn t testPort $ \_ ->
+  withSmpServerStoreMsgLogOn ps testPort $ \_ ->
     withNtfServerStoreLog t $ \_ -> runRight_ $ do
       void $ messageNotificationData alice apns
 
-testNotificationsSMPRestart :: ATransport -> APNSMockServer -> IO ()
-testNotificationsSMPRestart t apns = withAgentClients2 $ \alice bob -> do
-  (aliceId, bobId) <- withSmpServerStoreLogOn t testPort $ \threadId -> runRight $ do
+testNotificationsSMPRestart :: (ATransport, AStoreType) -> APNSMockServer -> IO ()
+testNotificationsSMPRestart ps apns = withAgentClients2 $ \alice bob -> do
+  (aliceId, bobId) <- withSmpServerStoreLogOn ps testPort $ \threadId -> runRight $ do
     (aliceId, bobId) <- makeConnection alice bob
     _ <- registerTestToken alice "abcd" NMInstant apns
     liftIO $ threadDelay 250000
@@ -801,7 +805,7 @@ testNotificationsSMPRestart t apns = withAgentClients2 $ \alice bob -> do
     nGet alice =##> \case ("", "", DOWN _ [c]) -> c == bobId; _ -> False
     nGet bob =##> \case ("", "", DOWN _ [c]) -> c == aliceId; _ -> False
 
-  withSmpServerStoreLogOn t testPort $ \threadId -> runRight_ $ do
+  withSmpServerStoreLogOn ps testPort $ \threadId -> runRight_ $ do
     nGet alice =##> \case ("", "", UP _ [c]) -> c == bobId; _ -> False
     nGet bob =##> \case ("", "", UP _ [c]) -> c == aliceId; _ -> False
     liftIO $ threadDelay 1000000
@@ -811,8 +815,8 @@ testNotificationsSMPRestart t apns = withAgentClients2 $ \alice bob -> do
     get alice =##> \case ("", c, Msg "hello again") -> c == bobId; _ -> False
     liftIO $ killThread threadId
 
-testNotificationsSMPRestartBatch :: Int -> ATransport -> APNSMockServer -> IO ()
-testNotificationsSMPRestartBatch n t apns =
+testNotificationsSMPRestartBatch :: Int -> (ATransport, AStoreType) -> APNSMockServer -> IO ()
+testNotificationsSMPRestartBatch n ps@(t, ASType qsType _) apns =
   withAgentClientsCfgServers2 agentCfg agentCfg initAgentServers2 $ \a b -> do
     threadDelay 1000000
     conns <- runServers $ do
@@ -851,8 +855,8 @@ testNotificationsSMPRestartBatch n t apns =
   where
     runServers :: ExceptT AgentErrorType IO a -> IO a
     runServers a = do
-      withSmpServerStoreLogOn t testPort $ \t1 -> do
-        res <- withSmpServerConfigOn t (cfg :: ServerConfig) {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2} testPort2 $ \t2 ->
+      withSmpServerStoreLogOn ps testPort $ \t1 -> do
+        res <- withSmpServerConfigOn t (cfgJ2QS qsType) testPort2 $ \t2 ->
           runRight a `finally` killThread t2
         killThread t1
         pure res
diff --git a/tests/CoreTests/MsgStoreTests.hs b/tests/CoreTests/MsgStoreTests.hs
index 3484fceb4..adde9ae2b 100644
--- a/tests/CoreTests/MsgStoreTests.hs
+++ b/tests/CoreTests/MsgStoreTests.hs
@@ -39,7 +39,7 @@ import Simplex.Messaging.Server.MsgStore.Journal
 import Simplex.Messaging.Server.MsgStore.STM
 import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.QueueStore
-import Simplex.Messaging.Server.QueueStore.STM
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.Server.StoreLog (closeStoreLog, logCreateQueue)
 import SMPClient (testStoreLogFile, testStoreMsgsDir, testStoreMsgsDir2, testStoreMsgsFile, testStoreMsgsFile2)
 import System.Directory (copyFile, createDirectoryIfMissing, listDirectory, removeFile, renameFile)
@@ -50,7 +50,7 @@ import Test.Hspec
 msgStoreTests :: Spec
 msgStoreTests = do
   around (withMsgStore testSMTStoreConfig) $ describe "STM message store" someMsgStoreTests
-  around (withMsgStore testJournalStoreCfg) $ describe "Journal message store" $ do
+  around (withMsgStore $ testJournalStoreCfg MQStoreCfg) $ describe "Journal message store" $ do
     someMsgStoreTests
     it "should export and import journal store" testExportImportStore
     describe "queue state" $ do
@@ -66,22 +66,24 @@ msgStoreTests = do
     it "should remove old queue state backups" testRemoveQueueStateBackups
     it "should expire messages in idle queues" testExpireIdleQueues
   where
-    someMsgStoreTests :: STMStoreClass s => SpecWith s
+    someMsgStoreTests :: MsgStoreClass s => SpecWith s
     someMsgStoreTests = do
       it "should get queue and store/read messages" testGetQueue
       it "should not fail on EOF when changing read journal" testChangeReadJournal
 
-withMsgStore :: STMStoreClass s => MsgStoreConfig s -> (s -> IO ()) -> IO ()
+-- TODO constrain to STM stores?
+withMsgStore :: MsgStoreClass s => MsgStoreConfig s -> (s -> IO ()) -> IO ()
 withMsgStore cfg = bracket (newMsgStore cfg) closeMsgStore
 
 testSMTStoreConfig :: STMStoreConfig
 testSMTStoreConfig = STMStoreConfig {storePath = Nothing, quota = 3}
 
-testJournalStoreCfg :: JournalStoreConfig
-testJournalStoreCfg =
+testJournalStoreCfg :: QStoreCfg s -> JournalStoreConfig s
+testJournalStoreCfg queueStoreCfg =
   JournalStoreConfig
     { storePath = testStoreMsgsDir,
       pathParts = journalMsgStoreDepth,
+      queueStoreCfg,
       quota = 3,
       maxMsgCount = 4,
       maxStateLines = 2,
@@ -126,7 +128,8 @@ testNewQueueRec g sndSecure = do
           }
   pure (rId, qr)
 
-testGetQueue :: STMStoreClass s => s -> IO ()
+-- TODO constrain to STM stores
+testGetQueue :: MsgStoreClass s => s -> IO ()
 testGetQueue ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
@@ -168,7 +171,8 @@ testGetQueue ms = do
     (Nothing, Nothing) <- tryDelPeekMsg ms q mId8
     void $ ExceptT $ deleteQueue ms q
 
-testChangeReadJournal :: STMStoreClass s => s -> IO ()
+-- TODO constrain to STM stores
+testChangeReadJournal :: MsgStoreClass s => s -> IO ()
 testChangeReadJournal ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
@@ -187,12 +191,12 @@ testChangeReadJournal ms = do
     (Msg "message 5", Nothing) <- tryDelPeekMsg ms q mId5
     void $ ExceptT $ deleteQueue ms q
 
-testExportImportStore :: JournalMsgStore -> IO ()
+testExportImportStore :: JournalMsgStore 'QSMemory -> IO ()
 testExportImportStore ms = do
   g <- C.newRandom
   (rId1, qr1) <- testNewQueueRec g True
   (rId2, qr2) <- testNewQueueRec g True
-  sl <- readWriteQueueStore testStoreLogFile ms
+  sl <- readWriteQueueStore True (mkQueue ms) testStoreLogFile $ queueStore ms
   runRight_ $ do
     let write q s = writeMsg ms q True =<< mkMessage s
     q1 <- ExceptT $ addQueue ms rId1 qr1
@@ -213,29 +217,26 @@ testExportImportStore ms = do
   length <$> listDirectory (msgQueueDirectory ms rId1) `shouldReturn` 2
   length <$> listDirectory (msgQueueDirectory ms rId2) `shouldReturn` 3
   exportMessages False ms testStoreMsgsFile False
-  renameFile testStoreMsgsFile (testStoreMsgsFile <> ".copy")
   closeMsgStore ms
   closeStoreLog sl
-  exportMessages False ms testStoreMsgsFile False
-  (B.readFile testStoreMsgsFile `shouldReturn`) =<< B.readFile (testStoreMsgsFile <> ".copy")
-  let cfg = (testJournalStoreCfg :: JournalStoreConfig) {storePath = testStoreMsgsDir2}
+  let cfg = (testJournalStoreCfg MQStoreCfg :: JournalStoreConfig 'QSMemory) {storePath = testStoreMsgsDir2}
   ms' <- newMsgStore cfg
-  readWriteQueueStore testStoreLogFile ms' >>= closeStoreLog
+  readWriteQueueStore True (mkQueue ms') testStoreLogFile (queueStore ms') >>= closeStoreLog
   stats@MessageStats {storedMsgsCount = 5, expiredMsgsCount = 0, storedQueues = 2} <-
     importMessages False ms' testStoreMsgsFile Nothing False
   printMessageStats "Messages" stats
   length <$> listDirectory (msgQueueDirectory ms rId1) `shouldReturn` 2
-  length <$> listDirectory (msgQueueDirectory ms rId2) `shouldReturn` 4 -- state file is backed up, 2 message files
+  length <$> listDirectory (msgQueueDirectory ms rId2) `shouldReturn` 3 -- 2 message files
   exportMessages False ms' testStoreMsgsFile2 False
   (B.readFile testStoreMsgsFile2 `shouldReturn`) =<< B.readFile (testStoreMsgsFile <> ".bak")
   stmStore <- newMsgStore testSMTStoreConfig
-  readWriteQueueStore testStoreLogFile stmStore >>= closeStoreLog
+  readWriteQueueStore True (mkQueue stmStore) testStoreLogFile (queueStore stmStore) >>= closeStoreLog
   MessageStats {storedMsgsCount = 5, expiredMsgsCount = 0, storedQueues = 2} <-
     importMessages False stmStore testStoreMsgsFile2 Nothing False
   exportMessages False stmStore testStoreMsgsFile False
   (B.sort <$> B.readFile testStoreMsgsFile `shouldReturn`) =<< (B.sort <$> B.readFile (testStoreMsgsFile2 <> ".bak"))
 
-testQueueState :: JournalMsgStore -> IO ()
+testQueueState :: JournalMsgStore s -> IO ()
 testQueueState ms = do
   g <- C.newRandom
   rId <- EntityId <$> atomically (C.randomBytes 24 g)
@@ -298,7 +299,7 @@ testQueueState ms = do
         let f = dir </> name
          in unless (f == keep) $ removeFile f
 
-testMessageState :: JournalMsgStore -> IO ()
+testMessageState :: JournalMsgStore s -> IO ()
 testMessageState ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
@@ -323,7 +324,7 @@ testMessageState ms = do
     (Msg "message 3", Nothing) <- tryDelPeekMsg ms q mId3
     liftIO $ closeMsgQueue q
 
-testRemoveJournals :: JournalMsgStore -> IO ()
+testRemoveJournals :: JournalMsgStore s -> IO ()
 testRemoveJournals ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
@@ -394,7 +395,7 @@ testRemoveQueueStateBackups = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
 
-  ms' <- newMsgStore testJournalStoreCfg {maxStateLines = 1, expireBackupsAfter = 0, keepMinBackups = 0}
+  ms' <- newMsgStore (testJournalStoreCfg MQStoreCfg) {maxStateLines = 1, expireBackupsAfter = 0, keepMinBackups = 0}
   -- set expiration time 1 second ahead
   let ms = ms' {expireBackupsBefore = addUTCTime 1 $ expireBackupsBefore ms'}
 
@@ -430,7 +431,7 @@ testExpireIdleQueues = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
 
-  ms <- newMsgStore testJournalStoreCfg {idleInterval = 0}
+  ms <- newMsgStore (testJournalStoreCfg MQStoreCfg) {idleInterval = 0}
 
   let dir = msgQueueDirectory ms rId
       statePath = msgQueueStatePath dir $ B.unpack (B64.encode $ unEntityId rId)
@@ -452,13 +453,13 @@ testExpireIdleQueues = do
   old <- expireBeforeEpoch ExpirationConfig {ttl = 1, checkInterval = 1} -- no old messages
   now <- systemSeconds <$> getSystemTime
 
-  (expired_, stored) <- runRight $ idleDeleteExpiredMsgs now ms q old
+  (expired_, stored) <- runRight $ isolateQueue q "" $ idleDeleteExpiredMsgs now ms q old
   expired_ `shouldBe` Just 0
   stored `shouldBe` 0
   (Nothing, False) <- readQueueState ms statePath
   pure ()
 
-testReadFileMissing :: JournalMsgStore -> IO ()
+testReadFileMissing :: JournalMsgStore s -> IO ()
 testReadFileMissing ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
@@ -469,9 +470,9 @@ testReadFileMissing ms = do
     Msg "message 1" <- tryPeekMsg ms q
     pure q
 
-  mq <- fromJust <$> readTVarIO (msgQueue_' q)
+  mq <- fromJust <$> readTVarIO (msgQueue q)
   MsgQueueState {readState = rs} <- readTVarIO $ state mq
-  closeMsgStore ms
+  closeMsgQueue q
   let path = journalFilePath (queueDirectory $ queue mq) $ journalId rs
   removeFile path
 
@@ -482,15 +483,15 @@ testReadFileMissing ms = do
     Msg "message 2" <- tryPeekMsg ms q'
     pure ()
 
-testReadFileMissingSwitch :: JournalMsgStore -> IO ()
+testReadFileMissingSwitch :: JournalMsgStore s -> IO ()
 testReadFileMissingSwitch ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
   q <- writeMessages ms rId qr
 
-  mq <- fromJust <$> readTVarIO (msgQueue_' q)
+  mq <- fromJust <$> readTVarIO (msgQueue q)
   MsgQueueState {readState = rs} <- readTVarIO $ state mq
-  closeMsgStore ms
+  closeMsgQueue q
   let path = journalFilePath (queueDirectory $ queue mq) $ journalId rs
   removeFile path
 
@@ -500,15 +501,15 @@ testReadFileMissingSwitch ms = do
     Msg "message 5" <- tryPeekMsg ms q'
     pure ()
 
-testWriteFileMissing :: JournalMsgStore -> IO ()
+testWriteFileMissing :: JournalMsgStore s -> IO ()
 testWriteFileMissing ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
   q <- writeMessages ms rId qr
 
-  mq <- fromJust <$> readTVarIO (msgQueue_' q)
+  mq <- fromJust <$> readTVarIO (msgQueue q)
   MsgQueueState {writeState = ws} <- readTVarIO $ state mq
-  closeMsgStore ms
+  closeMsgQueue q
   let path = journalFilePath (queueDirectory $ queue mq) $ journalId ws
   print path
   removeFile path
@@ -523,15 +524,15 @@ testWriteFileMissing ms = do
     Msg "message 6" <- tryPeekMsg ms q'
     pure ()
 
-testReadAndWriteFilesMissing :: JournalMsgStore -> IO ()
+testReadAndWriteFilesMissing :: JournalMsgStore s -> IO ()
 testReadAndWriteFilesMissing ms = do
   g <- C.newRandom
   (rId, qr) <- testNewQueueRec g True
   q <- writeMessages ms rId qr
 
-  mq <- fromJust <$> readTVarIO (msgQueue_' q)
+  mq <- fromJust <$> readTVarIO (msgQueue q)
   MsgQueueState {readState = rs, writeState = ws} <- readTVarIO $ state mq
-  closeMsgStore ms
+  closeMsgQueue q
   removeFile $ journalFilePath (queueDirectory $ queue mq) $ journalId rs
   removeFile $ journalFilePath (queueDirectory $ queue mq) $ journalId ws
 
@@ -542,7 +543,7 @@ testReadAndWriteFilesMissing ms = do
     Msg "message 6" <- tryPeekMsg ms q'
     pure ()
 
-writeMessages :: JournalMsgStore -> RecipientId -> QueueRec -> IO JournalQueue
+writeMessages :: JournalMsgStore s -> RecipientId -> QueueRec -> IO (JournalQueue s)
 writeMessages ms rId qr = runRight $ do
   q <- ExceptT $ addQueue ms rId qr
   let write s = writeMsg ms q True =<< mkMessage s
diff --git a/tests/CoreTests/StoreLogTests.hs b/tests/CoreTests/StoreLogTests.hs
index f62fb808f..d871f5b0a 100644
--- a/tests/CoreTests/StoreLogTests.hs
+++ b/tests/CoreTests/StoreLogTests.hs
@@ -23,6 +23,8 @@ import Simplex.Messaging.Server.Env.STM (readWriteQueueStore)
 import Simplex.Messaging.Server.MsgStore.Journal
 import Simplex.Messaging.Server.MsgStore.Types
 import Simplex.Messaging.Server.QueueStore
+import Simplex.Messaging.Server.QueueStore.STM (STMQueueStore (..))
+import Simplex.Messaging.Server.QueueStore.Types
 import Simplex.Messaging.Server.StoreLog
 import Test.Hspec
 
@@ -99,17 +101,17 @@ storeLogTests =
 testSMPStoreLog :: String -> [SMPStoreLogTestCase] -> Spec
 testSMPStoreLog testSuite tests =
   describe testSuite $ forM_ tests $ \t@SLTC {name, saved} -> it name $ do
-    l <- openWriteStoreLog testStoreLogFile
+    l <- openWriteStoreLog False testStoreLogFile
     mapM_ (writeStoreLogRecord l) saved
     closeStoreLog l
     replicateM_ 3 $ testReadWrite t
   where
     testReadWrite SLTC {compacted, state} = do
-      st <- newMsgStore testJournalStoreCfg
-      l <- readWriteQueueStore testStoreLogFile st
+      st <- newMsgStore $ testJournalStoreCfg MQStoreCfg
+      l <- readWriteQueueStore True (mkQueue st) testStoreLogFile $ queueStore st
       storeState st `shouldReturn` state
       closeStoreLog l
       ([], compacted') <- partitionEithers . map strDecode . B.lines <$> B.readFile testStoreLogFile
       compacted' `shouldBe` compacted
-    storeState :: JournalMsgStore -> IO (M.Map RecipientId QueueRec)
-    storeState st = M.mapMaybe id <$> (readTVarIO (queues $ stmQueueStore st) >>= mapM (readTVarIO . queueRec'))
+    storeState :: JournalMsgStore 'QSMemory -> IO (M.Map RecipientId QueueRec)
+    storeState st = M.mapMaybe id <$> (readTVarIO (queues $ stmQueueStore st) >>= mapM (readTVarIO . queueRec))
diff --git a/tests/Fixtures.hs b/tests/Fixtures.hs
index d8c7c5cc1..2360a7ba6 100644
--- a/tests/Fixtures.hs
+++ b/tests/Fixtures.hs
@@ -1,14 +1,10 @@
-{-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 
 module Fixtures where
 
-#if defined(dbPostgres)
 import Data.ByteString (ByteString)
 import Database.PostgreSQL.Simple (ConnectInfo (..), defaultConnectInfo)
-#endif
 
-#if defined(dbPostgres)
 testDBConnstr :: ByteString
 testDBConnstr = "postgresql://test_agent_user@/test_agent_db"
 
@@ -18,4 +14,3 @@ testDBConnectInfo =
     connectUser = "test_agent_user",
     connectDatabase = "test_agent_db"
   }
-#endif
diff --git a/tests/SMPClient.hs b/tests/SMPClient.hs
index 3c732b7a5..602055b82 100644
--- a/tests/SMPClient.hs
+++ b/tests/SMPClient.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE FlexibleContexts #-}
@@ -17,6 +18,8 @@ import Control.Monad.Except (runExceptT)
 import Data.ByteString.Char8 (ByteString)
 import Data.List.NonEmpty (NonEmpty)
 import Network.Socket
+import Simplex.Messaging.Agent.Store.Postgres.Options (DBOpts (..))
+import Simplex.Messaging.Agent.Store.Shared (MigrationConfirmation (..))
 import Simplex.Messaging.Client (ProtocolClientConfig (..), chooseTransportHost, defaultNetworkConfig)
 import Simplex.Messaging.Client.Agent (SMPClientAgentConfig (..), defaultSMPClientAgentConfig)
 import qualified Simplex.Messaging.Crypto as C
@@ -24,7 +27,8 @@ import Simplex.Messaging.Encoding
 import Simplex.Messaging.Protocol
 import Simplex.Messaging.Server (runSMPServerBlocking)
 import Simplex.Messaging.Server.Env.STM
-import Simplex.Messaging.Server.MsgStore.Types (AMSType (..), SMSType (..))
+import Simplex.Messaging.Server.MsgStore.Types (SMSType (..), SQSType (..))
+import Simplex.Messaging.Server.QueueStore.Postgres.Config (PostgresStoreCfg (..))
 import Simplex.Messaging.Transport
 import Simplex.Messaging.Transport.Client
 import qualified Simplex.Messaging.Transport.Client as Client
@@ -36,10 +40,14 @@ import System.Info (os)
 import Test.Hspec
 import UnliftIO.Concurrent
 import qualified UnliftIO.Exception as E
-import UnliftIO.STM (TMVar, atomically, newEmptyTMVarIO, takeTMVar)
+import UnliftIO.STM (TMVar, atomically, newEmptyTMVarIO, putTMVar, takeTMVar)
 import UnliftIO.Timeout (timeout)
 import Util
 
+#if defined(dbServerPostgres)
+import Database.PostgreSQL.Simple (ConnectInfo (..), defaultConnectInfo)
+#endif
+
 testHost :: NonEmpty TransportHost
 testHost = "localhost"
 
@@ -61,6 +69,30 @@ testStoreLogFile = "tests/tmp/smp-server-store.log"
 testStoreLogFile2 :: FilePath
 testStoreLogFile2 = "tests/tmp/smp-server-store.log.2"
 
+testStoreDBOpts :: DBOpts
+testStoreDBOpts = 
+  DBOpts
+    { connstr = testServerDBConnstr,
+      schema = "smp_server",
+      poolSize = 3,
+      createSchema = True
+    }
+
+testStoreDBOpts2 :: DBOpts
+testStoreDBOpts2 = testStoreDBOpts {schema = "smp_server2"}
+
+testServerDBConnstr :: ByteString
+testServerDBConnstr = "postgresql://test_server_user@/test_server_db"
+
+#if defined(dbServerPostgres)
+testServerDBConnectInfo :: ConnectInfo
+testServerDBConnectInfo =
+  defaultConnectInfo {
+    connectUser = "test_server_user",
+    connectDatabase = "test_server_db"
+  }
+#endif
+
 testStoreMsgsFile :: FilePath
 testStoreMsgsFile = "tests/tmp/smp-server-messages.log"
 
@@ -89,9 +121,13 @@ xit' :: (HasCallStack, Example a) => String -> a -> SpecWith (Arg a)
 xit' d = if os == "linux" then skip "skipped on Linux" . it d else it d
 
 xit'' :: (HasCallStack, Example a) => String -> a -> SpecWith (Arg a)
-xit'' d t = do
-  ci <- runIO $ lookupEnv "CI"
-  (if ci == Just "true" then skip "skipped on CI" . it d else it d) t
+xit'' d = skipOnCI . it d
+
+skipOnCI :: SpecWith a -> SpecWith a
+skipOnCI t =
+  runIO (lookupEnv "CI") >>= \case
+    Just "true" -> skip "skipped on CI" t
+    _ -> t
 
 testSMPClient :: Transport c => (THandleSMP c 'TClient -> IO a) -> IO a
 testSMPClient = testSMPClientVR supportedClientSMPRelayVRange
@@ -114,24 +150,36 @@ testSMPClient_ host port vr client = do
       | otherwise = Nothing
 
 cfg :: ServerConfig
-cfg = cfgMS (AMSType SMSJournal)
+cfg = cfgMS (ASType SQSMemory SMSJournal)
 
-cfgMS :: AMSType -> ServerConfig
+cfgJ2 :: ServerConfig
+cfgJ2 = journalCfg cfg testStoreLogFile2 testStoreMsgsDir2
+
+cfgJ2QS :: SQSType s -> ServerConfig
+cfgJ2QS = \case
+  SQSMemory -> journalCfg (cfgMS $ ASType SQSMemory SMSJournal) testStoreLogFile2 testStoreMsgsDir2
+  SQSPostgres -> journalCfgDB (cfgMS $ ASType SQSPostgres SMSJournal) testStoreDBOpts2 testStoreMsgsDir2
+
+journalCfg :: ServerConfig -> FilePath -> FilePath -> ServerConfig
+journalCfg cfg' storeLogFile storeMsgsPath = cfg' {serverStoreCfg = ASSCfg SQSMemory SMSJournal SSCMemoryJournal {storeLogFile, storeMsgsPath}}
+
+journalCfgDB :: ServerConfig -> DBOpts -> FilePath -> ServerConfig
+journalCfgDB cfg' dbOpts storeMsgsPath' = 
+  let storeCfg = PostgresStoreCfg {dbOpts, dbStoreLogPath = Nothing, confirmMigrations = MCYesUp, deletedTTL = 86400}
+   in cfg' {serverStoreCfg = ASSCfg SQSPostgres SMSJournal SSCDatabaseJournal {storeCfg, storeMsgsPath'}}
+
+cfgMS :: AStoreType -> ServerConfig
 cfgMS msType =
   ServerConfig
     { transports = [],
       smpHandshakeTimeout = 60000000,
       tbqSize = 1,
-      msgStoreType = msType,
       msgQueueQuota = 4,
       maxJournalMsgCount = 5,
       maxJournalStateLines = 2,
       queueIdBytes = 24,
       msgIdBytes = 24,
-      storeLogFile = Just testStoreLogFile,
-      storeMsgsFile = Just $ case msType of
-        AMSType SMSJournal -> testStoreMsgsDir
-        AMSType SMSMemory -> testStoreMsgsFile,
+      serverStoreCfg = serverStoreConfig msType,
       storeNtfsFile = Nothing,
       allowNewQueues = True,
       newQueueBasicAuth = Nothing,
@@ -164,17 +212,31 @@ cfgMS msType =
       allowSMPProxy = False,
       serverClientConcurrency = 2,
       information = Nothing,
-      startOptions = StartOptions {maintenance = False, skipWarnings = False}
+      startOptions = StartOptions {maintenance = False, compactLog = False, skipWarnings = False, confirmMigrations = MCYesUp}
     }
 
+serverStoreConfig :: AStoreType -> AServerStoreCfg
+serverStoreConfig = serverStoreConfig_ False
+
+serverStoreConfig_ :: Bool -> AStoreType -> AServerStoreCfg
+serverStoreConfig_ useDbStoreLog = \case
+  ASType SQSMemory SMSMemory ->
+    ASSCfg SQSMemory SMSMemory $ SSCMemory $ Just StorePaths {storeLogFile = testStoreLogFile, storeMsgsFile = Just testStoreMsgsFile}
+  ASType SQSMemory SMSJournal ->
+    ASSCfg SQSMemory SMSJournal $ SSCMemoryJournal {storeLogFile = testStoreLogFile, storeMsgsPath = testStoreMsgsDir}
+  ASType SQSPostgres SMSJournal ->
+    let dbStoreLogPath = if useDbStoreLog then Just testStoreLogFile else Nothing
+        storeCfg = PostgresStoreCfg {dbOpts = testStoreDBOpts, dbStoreLogPath, confirmMigrations = MCYesUp, deletedTTL = 86400}
+     in ASSCfg SQSPostgres SMSJournal SSCDatabaseJournal {storeCfg, storeMsgsPath' = testStoreMsgsDir}
+
 cfgV7 :: ServerConfig
 cfgV7 = cfg {smpServerVRange = mkVersionRange minServerSMPRelayVersion authCmdsSMPVersion}
 
-cfgV8 :: ServerConfig
-cfgV8 = cfg {smpServerVRange = mkVersionRange minServerSMPRelayVersion sendingProxySMPVersion}
+cfgV8 :: AStoreType -> ServerConfig
+cfgV8 msType = (cfgMS msType) {smpServerVRange = mkVersionRange minServerSMPRelayVersion sendingProxySMPVersion}
 
-cfgVPrev :: ServerConfig
-cfgVPrev = cfg {smpServerVRange = prevRange $ smpServerVRange cfg}
+cfgVPrev :: AStoreType -> ServerConfig
+cfgVPrev msType = (cfgMS msType) {smpServerVRange = prevRange $ smpServerVRange cfg}
 
 prevRange :: VersionRange v -> VersionRange v
 prevRange vr = vr {maxVersion = max (minVersion vr) (prevVersion $ maxVersion vr)}
@@ -183,29 +245,33 @@ prevVersion :: Version v -> Version v
 prevVersion (Version v) = Version (v - 1)
 
 proxyCfg :: ServerConfig
-proxyCfg =
-  cfg
+proxyCfg = proxyCfgMS (ASType SQSMemory SMSJournal)
+
+proxyCfgMS :: AStoreType -> ServerConfig
+proxyCfgMS msType =
+  (cfgMS msType)
     { allowSMPProxy = True,
       smpAgentCfg = smpAgentCfg' {smpCfg = (smpCfg smpAgentCfg') {agreeSecret = True, proxyServer = True, serverVRange = supportedProxyClientSMPRelayVRange}}
     }
   where
     smpAgentCfg' = smpAgentCfg cfg
 
+proxyCfgJ2 :: ServerConfig
+proxyCfgJ2 = journalCfg proxyCfg testStoreLogFile2 testStoreMsgsDir2
+
+-- TODO [postgres]
+-- proxyCfgJ2 :: ServerConfig
+-- proxyCfgJ2 = journalCfg proxyCfg testStoreDBOpts2 testStoreMsgsDir2
+
 proxyVRangeV8 :: VersionRangeSMP
 proxyVRangeV8 = mkVersionRange minServerSMPRelayVersion sendingProxySMPVersion
 
-withSmpServerStoreMsgLogOn :: HasCallStack => ATransport -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
-withSmpServerStoreMsgLogOn = (`withSmpServerStoreMsgLogOnMS` AMSType SMSJournal)
-
-withSmpServerStoreMsgLogOnMS :: HasCallStack => ATransport -> AMSType -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
-withSmpServerStoreMsgLogOnMS t msType =
+withSmpServerStoreMsgLogOn :: HasCallStack => (ATransport, AStoreType) -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
+withSmpServerStoreMsgLogOn (t, msType) =
   withSmpServerConfigOn t (cfgMS msType) {storeNtfsFile = Just testStoreNtfsFile, serverStatsBackupFile = Just testServerStatsBackupFile}
 
-withSmpServerStoreLogOn :: HasCallStack => ATransport -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
-withSmpServerStoreLogOn = (`withSmpServerStoreLogOnMS` AMSType SMSJournal)
-
-withSmpServerStoreLogOnMS :: HasCallStack => ATransport -> AMSType -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
-withSmpServerStoreLogOnMS t msType = withSmpServerConfigOn t (cfgMS msType) {serverStatsBackupFile = Just testServerStatsBackupFile}
+withSmpServerStoreLogOn :: HasCallStack => (ATransport, AStoreType) -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
+withSmpServerStoreLogOn (t, msType) = withSmpServerConfigOn t (cfgMS msType) {serverStatsBackupFile = Just testServerStatsBackupFile}
 
 withSmpServerConfigOn :: HasCallStack => ATransport -> ServerConfig -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
 withSmpServerConfigOn t cfg' port' =
@@ -213,35 +279,40 @@ withSmpServerConfigOn t cfg' port' =
     (\started -> runSMPServerBlocking started cfg' {transports = [(port', t, False)]} Nothing)
     (threadDelay 10000)
 
-withSmpServerThreadOn :: HasCallStack => ATransport -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
-withSmpServerThreadOn t = withSmpServerConfigOn t cfg
+withSmpServerThreadOn :: HasCallStack => (ATransport, AStoreType) -> ServiceName -> (HasCallStack => ThreadId -> IO a) -> IO a
+withSmpServerThreadOn (t, msType) = withSmpServerConfigOn t (cfgMS msType)
 
 serverBracket :: HasCallStack => (TMVar Bool -> IO ()) -> IO () -> (HasCallStack => ThreadId -> IO a) -> IO a
 serverBracket process afterProcess f = do
   started <- newEmptyTMVarIO
   E.bracket
-    (forkIOWithUnmask ($ process started))
+    (forkIOWithUnmask (\unmask -> unmask (process started) `E.catchAny` handleStartError started))
     (\t -> killThread t >> afterProcess >> waitFor started "stop")
     (\t -> waitFor started "start" >> f t >>= \r -> r <$ threadDelay 100000)
   where
+    -- it putTMVar is called twise to unlock both parts of the bracket in case of start failure
+    handleStartError started e = do
+      atomically $ putTMVar started False
+      atomically $ putTMVar started False
+      E.throwIO e
     waitFor started s =
       5_000_000 `timeout` atomically (takeTMVar started) >>= \case
         Nothing -> error $ "server did not " <> s
         _ -> pure ()
 
-withSmpServerOn :: HasCallStack => ATransport -> ServiceName -> IO a -> IO a
-withSmpServerOn t port' = withSmpServerThreadOn t port' . const
+withSmpServerOn :: HasCallStack => (ATransport, AStoreType) -> ServiceName -> IO a -> IO a
+withSmpServerOn ps port' = withSmpServerThreadOn ps port' . const
 
-withSmpServer :: HasCallStack => ATransport -> IO a -> IO a
-withSmpServer t = withSmpServerOn t testPort
+withSmpServer :: HasCallStack => (ATransport, AStoreType) -> IO a -> IO a
+withSmpServer ps = withSmpServerOn ps testPort
 
-withSmpServerProxy :: HasCallStack => ATransport -> IO a -> IO a
-withSmpServerProxy t = withSmpServerConfigOn t proxyCfg testPort . const
+withSmpServerProxy :: HasCallStack => (ATransport, AStoreType) -> IO a -> IO a
+withSmpServerProxy (t, msType) = withSmpServerConfigOn t (proxyCfgMS msType) testPort . const
 
-runSmpTest :: forall c a. (HasCallStack, Transport c) => AMSType -> (HasCallStack => THandleSMP c 'TClient -> IO a) -> IO a
+runSmpTest :: forall c a. (HasCallStack, Transport c) => AStoreType -> (HasCallStack => THandleSMP c 'TClient -> IO a) -> IO a
 runSmpTest msType test = withSmpServerConfigOn (transport @c) (cfgMS msType) testPort $ \_ -> testSMPClient test
 
-runSmpTestN :: forall c a. (HasCallStack, Transport c) => AMSType -> Int -> (HasCallStack => [THandleSMP c 'TClient] -> IO a) -> IO a
+runSmpTestN :: forall c a. (HasCallStack, Transport c) => AStoreType -> Int -> (HasCallStack => [THandleSMP c 'TClient] -> IO a) -> IO a
 runSmpTestN msType = runSmpTestNCfg (cfgMS msType) supportedClientSMPRelayVRange
 
 runSmpTestNCfg :: forall c a. (HasCallStack, Transport c) => ServerConfig -> VersionRangeSMP -> Int -> (HasCallStack => [THandleSMP c 'TClient] -> IO a) -> IO a
@@ -257,7 +328,7 @@ smpServerTest ::
   TProxy c ->
   (Maybe TransmissionAuth, ByteString, ByteString, smp) ->
   IO (Maybe TransmissionAuth, ByteString, ByteString, BrokerMsg)
-smpServerTest _ t = runSmpTest (AMSType SMSJournal) $ \h -> tPut' h t >> tGet' h
+smpServerTest _ t = runSmpTest (ASType SQSMemory SMSJournal) $ \h -> tPut' h t >> tGet' h
   where
     tPut' :: THandleSMP c 'TClient -> (Maybe TransmissionAuth, ByteString, ByteString, smp) -> IO ()
     tPut' h@THandle {params = THandleParams {sessionId, implySessId}} (sig, corrId, queueId, smp) = do
@@ -268,16 +339,16 @@ smpServerTest _ t = runSmpTest (AMSType SMSJournal) $ \h -> tPut' h t >> tGet' h
       [(Nothing, _, (CorrId corrId, EntityId qId, Right cmd))] <- tGet h
       pure (Nothing, corrId, qId, cmd)
 
-smpTest :: (HasCallStack, Transport c) => TProxy c -> AMSType -> (HasCallStack => THandleSMP c 'TClient -> IO ()) -> Expectation
+smpTest :: (HasCallStack, Transport c) => TProxy c -> AStoreType -> (HasCallStack => THandleSMP c 'TClient -> IO ()) -> Expectation
 smpTest _ msType test' = runSmpTest msType test' `shouldReturn` ()
 
-smpTestN :: (HasCallStack, Transport c) => AMSType -> Int -> (HasCallStack => [THandleSMP c 'TClient] -> IO ()) -> Expectation
+smpTestN :: (HasCallStack, Transport c) => AStoreType -> Int -> (HasCallStack => [THandleSMP c 'TClient] -> IO ()) -> Expectation
 smpTestN msType n test' = runSmpTestN msType n test' `shouldReturn` ()
 
 smpTest2' :: forall c. (HasCallStack, Transport c) => TProxy c -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
-smpTest2' = (`smpTest2` AMSType SMSJournal)
+smpTest2' = (`smpTest2` ASType SQSMemory SMSJournal)
 
-smpTest2 :: forall c. (HasCallStack, Transport c) => TProxy c -> AMSType -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
+smpTest2 :: forall c. (HasCallStack, Transport c) => TProxy c -> AStoreType -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
 smpTest2 t msType = smpTest2Cfg (cfgMS msType) supportedClientSMPRelayVRange t
 
 smpTest2Cfg :: forall c. (HasCallStack, Transport c) => ServerConfig -> VersionRangeSMP -> TProxy c -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
@@ -287,14 +358,14 @@ smpTest2Cfg srvCfg clntVR _ test' = runSmpTestNCfg srvCfg clntVR 2 _test `should
     _test [h1, h2] = test' h1 h2
     _test _ = error "expected 2 handles"
 
-smpTest3 :: forall c. (HasCallStack, Transport c) => TProxy c -> AMSType -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
+smpTest3 :: forall c. (HasCallStack, Transport c) => TProxy c -> AStoreType -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
 smpTest3 _ msType test' = smpTestN msType 3 _test
   where
     _test :: HasCallStack => [THandleSMP c 'TClient] -> IO ()
     _test [h1, h2, h3] = test' h1 h2 h3
     _test _ = error "expected 3 handles"
 
-smpTest4 :: forall c. (HasCallStack, Transport c) => TProxy c -> AMSType -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
+smpTest4 :: forall c. (HasCallStack, Transport c) => TProxy c -> AStoreType -> (HasCallStack => THandleSMP c 'TClient -> THandleSMP c 'TClient -> THandleSMP c 'TClient -> THandleSMP c 'TClient -> IO ()) -> Expectation
 smpTest4 _ msType test' = smpTestN msType 4 _test
   where
     _test :: HasCallStack => [THandleSMP c 'TClient] -> IO ()
diff --git a/tests/SMPProxyTests.hs b/tests/SMPProxyTests.hs
index 61b7c1670..4be81aedc 100644
--- a/tests/SMPProxyTests.hs
+++ b/tests/SMPProxyTests.hs
@@ -38,7 +38,8 @@ import Simplex.Messaging.Crypto.Ratchet (pattern PQSupportOn)
 import qualified Simplex.Messaging.Crypto.Ratchet as CR
 import Simplex.Messaging.Protocol (EncRcvMsgBody (..), MsgBody, RcvMessage (..), SubscriptionMode (..), maxMessageLength, noMsgFlags, pattern NoEntity)
 import qualified Simplex.Messaging.Protocol as SMP
-import Simplex.Messaging.Server.Env.STM (ServerConfig (..))
+import Simplex.Messaging.Server.Env.STM (AStoreType (..), ServerConfig (..))
+import Simplex.Messaging.Server.MsgStore.Types (SQSType (..))
 import Simplex.Messaging.Transport
 import Simplex.Messaging.Util (bshow, tshow)
 import Simplex.Messaging.Version (mkVersionRange)
@@ -52,7 +53,7 @@ import Fixtures
 import Simplex.Messaging.Agent.Store.Postgres.Util (dropAllSchemasExceptSystem)
 #endif
 
-smpProxyTests :: Spec
+smpProxyTests :: SpecWith AStoreType
 smpProxyTests = do
   describe "server configuration" $ do
     it "refuses proxy handshake unless enabled" testNoProxy
@@ -117,8 +118,9 @@ smpProxyTests = do
         it "without proxy" . oneServer $
           agentDeliverMessageViaProxy ([srv1], SPMNever, False) ([srv1], SPMNever, False) C.SEd448 "hello 1" "hello 2" 1
       describe "two servers" $ do
-        it "always via proxy" . twoServers $
-          agentDeliverMessageViaProxy ([srv1], SPMAlways, True) ([srv2], SPMAlways, True) C.SEd448 "hello 1" "hello 2" 1
+        it "always via proxy" $ \msType -> twoServers
+          (agentDeliverMessageViaProxy ([srv1], SPMAlways, True) ([srv2], SPMAlways, True) C.SEd448 "hello 1" "hello 2" 1)
+          msType
         it "both via proxy" . twoServers $
           agentDeliverMessageViaProxy ([srv1], SPMUnknown, True) ([srv2], SPMUnknown, True) C.SEd448 "hello 1" "hello 2" 1
         it "first via proxy" . twoServers $
@@ -131,9 +133,9 @@ smpProxyTests = do
           agentDeliverMessageViaProxy ([srv1], SPMUnknown, False) ([srv2], SPMUnknown, False) C.SEd448 "hello 1" "hello 2" 3
         it "fails when fallback is prohibited" . twoServers_ proxyCfg cfgV7 $
           agentViaProxyVersionError
-        it "retries sending when destination or proxy relay is offline" $
+        it "retries sending when destination or proxy relay is offline" $ \_ ->
           agentViaProxyRetryOffline
-        it "retries sending when destination relay session disconnects in proxy" $
+        it "retries sending when destination relay session disconnects in proxy" $ \_ ->
           agentViaProxyRetryNoSession
       describe "stress test 1k" $ do
         let deliver nAgents nMsgs = agentDeliverMessagesViaProxyConc (replicate nAgents [srv1]) (map bshow [1 :: Int .. nMsgs])
@@ -144,14 +146,17 @@ smpProxyTests = do
         let deliver nAgents nMsgs = agentDeliverMessagesViaProxyConc (replicate nAgents [srv1]) (map bshow [1 :: Int .. nMsgs])
         it "25 agents, 300 pairs, 17 messages" . oneServer . withNumCapabilities 4 $ deliver 25 17
   where
-    oneServer = withSmpServerConfigOn (transport @TLS) proxyCfg {msgQueueQuota = 128, maxJournalMsgCount = 256} testPort . const
-    twoServers = twoServers_ proxyCfg proxyCfg
-    twoServersFirstProxy = twoServers_ proxyCfg cfgV8 {msgQueueQuota = 128, maxJournalMsgCount = 256}
-    twoServersMoreConc = twoServers_ proxyCfg {serverClientConcurrency = 128} cfgV8 {msgQueueQuota = 128, maxJournalMsgCount = 256}
-    twoServersNoConc = twoServers_ proxyCfg {serverClientConcurrency = 1} cfgV8 {msgQueueQuota = 128, maxJournalMsgCount = 256}
-    twoServers_ cfg1 cfg2 runTest =
+    oneServer test msType = withSmpServerConfigOn (transport @TLS) (proxyCfgMS msType) {msgQueueQuota = 128, maxJournalMsgCount = 256} testPort $ const test
+    twoServers test msType = twoServers_ (proxyCfgMS msType) (proxyCfgMS msType) test msType
+    twoServersFirstProxy test msType = twoServers_ (proxyCfgMS msType) (cfgV8 msType) {msgQueueQuota = 128, maxJournalMsgCount = 256} test msType
+    twoServersMoreConc test msType = twoServers_ (proxyCfgMS msType) {serverClientConcurrency = 128} (cfgV8 msType) {msgQueueQuota = 128, maxJournalMsgCount = 256} test msType
+    twoServersNoConc test msType = twoServers_ (proxyCfgMS msType) {serverClientConcurrency = 1} (cfgV8 msType) {msgQueueQuota = 128, maxJournalMsgCount = 256} test msType
+    twoServers_ :: ServerConfig -> ServerConfig -> IO () -> AStoreType -> IO ()
+    twoServers_ cfg1 cfg2 runTest (ASType qsType _) =
       withSmpServerConfigOn (transport @TLS) cfg1 testPort $ \_ ->
-        let cfg2' = cfg2 {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsDir2}
+        let cfg2' = case qsType of
+              SQSMemory -> journalCfg cfg2 testStoreLogFile2 testStoreMsgsDir2
+              SQSPostgres -> journalCfgDB cfg2 testStoreDBOpts2 testStoreMsgsDir2
          in withSmpServerConfigOn (transport @TLS) cfg2' testPort2 $ const runTest
 
 deliverMessageViaProxy :: (C.AlgorithmI a, C.AuthAlgorithm a) => SMPServer -> SMPServer -> C.SAlgorithm a -> ByteString -> ByteString -> IO ()
@@ -390,10 +395,14 @@ agentViaProxyRetryOffline = do
   where
     withServer :: (ThreadId -> IO a) -> IO a
     withServer = withServer_ testStoreLogFile testStoreMsgsDir testStoreNtfsFile testPort
+    -- TODO [postgres]
+    -- withServer = withServer_ testStoreDBOpts testStoreMsgsDir testStoreNtfsFile testPort
     withServer2 :: (ThreadId -> IO a) -> IO a
     withServer2 = withServer_ testStoreLogFile2 testStoreMsgsDir2 testStoreNtfsFile2 testPort2
+    -- TODO [postgres]
+    -- withServer2 = withServer_ testStoreDBOpts2 testStoreMsgsDir2 testStoreNtfsFile2 testPort2
     withServer_ storeLog storeMsgs storeNtfs =
-      withSmpServerConfigOn (transport @TLS) proxyCfg {storeLogFile = Just storeLog, storeMsgsFile = Just storeMsgs, storeNtfsFile = Just storeNtfs}
+      withSmpServerConfigOn (transport @TLS) (journalCfg proxyCfg storeLog storeMsgs) {storeNtfsFile = Just storeNtfs}
     a `up` cId = nGet a =##> \case ("", "", UP _ [c]) -> c == cId; _ -> False
     a `down` cId = nGet a =##> \case ("", "", DOWN _ [c]) -> c == cId; _ -> False
     aCfg = agentCfg {messageRetryInterval = fastMessageRetryInterval}
@@ -418,28 +427,27 @@ agentViaProxyRetryNoSession = do
           _ <- runRight $ makeConnection b a
           pure ()
   where
-    withServer2 = withSmpServerConfigOn (transport @TLS) proxyCfg {storeLogFile = Just testStoreLogFile2, storeMsgsFile = Just testStoreMsgsFile2} testPort2
+    withServer2 = withSmpServerConfigOn (transport @TLS) proxyCfgJ2 testPort2
     servers srv = (initAgentServersProxy SPMAlways SPFProhibit) {smp = userServers [srv]}
 
-testNoProxy :: IO ()
-testNoProxy = do
-  withSmpServerConfigOn (transport @TLS) cfg testPort2 $ \_ -> do
+testNoProxy :: AStoreType -> IO ()
+testNoProxy msType = do
+  withSmpServerConfigOn (transport @TLS) (cfgMS msType) testPort2 $ \_ -> do
     testSMPClient_ "127.0.0.1" testPort2 proxyVRangeV8 $ \(th :: THandleSMP TLS 'TClient) -> do
       (_, _, (_corrId, _entityId, reply)) <- sendRecv th (Nothing, "0", NoEntity, SMP.PRXY testSMPServer Nothing)
       reply `shouldBe` Right (SMP.ERR $ SMP.PROXY SMP.BASIC_AUTH)
 
-testProxyAuth :: IO ()
-testProxyAuth = do
+testProxyAuth :: AStoreType -> IO ()
+testProxyAuth msType = do
   withSmpServerConfigOn (transport @TLS) proxyCfgAuth testPort $ \_ -> do
     testSMPClient_ "127.0.0.1" testPort proxyVRangeV8 $ \(th :: THandleSMP TLS 'TClient) -> do
       (_, _s, (_corrId, _entityId, reply)) <- sendRecv th (Nothing, "0", NoEntity, SMP.PRXY testSMPServer2 $ Just "wrong")
       reply `shouldBe` Right (SMP.ERR $ SMP.PROXY SMP.BASIC_AUTH)
   where
-    proxyCfgAuth = proxyCfg {newQueueBasicAuth = Just "correct"}
+    proxyCfgAuth = (proxyCfgMS msType) {newQueueBasicAuth = Just "correct"}
 
-todo :: IO ()
-todo = do
-  fail "TODO"
+todo :: AStoreType -> IO ()
+todo _ = fail "TODO"
 
 runExceptT' :: Exception e => ExceptT e IO a -> IO a
 runExceptT' a = runExceptT a >>= either throwIO pure
diff --git a/tests/ServerTests.hs b/tests/ServerTests.hs
index 986a214d7..824338452 100644
--- a/tests/ServerTests.hs
+++ b/tests/ServerTests.hs
@@ -17,7 +17,7 @@ module ServerTests where
 
 import Control.Concurrent (ThreadId, killThread, threadDelay)
 import Control.Concurrent.STM
-import Control.Exception (SomeException, try)
+import Control.Exception (SomeException, try, throwIO)
 import Control.Monad
 import Control.Monad.IO.Class
 import CoreTests.MsgStoreTests (testJournalStoreCfg)
@@ -36,10 +36,10 @@ import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Parsers (parseAll)
 import Simplex.Messaging.Protocol
 import Simplex.Messaging.Server (exportMessages)
-import Simplex.Messaging.Server.Env.STM (ServerConfig (..), readWriteQueueStore)
+import Simplex.Messaging.Server.Env.STM (AServerStoreCfg (..), AStoreType (..), ServerConfig (..), ServerStoreCfg (..), readWriteQueueStore)
 import Simplex.Messaging.Server.Expiration
-import Simplex.Messaging.Server.MsgStore.Journal (JournalStoreConfig (..))
-import Simplex.Messaging.Server.MsgStore.Types (AMSType (..), SMSType (..), newMsgStore)
+import Simplex.Messaging.Server.MsgStore.Journal (JournalStoreConfig (..), QStoreCfg (..))
+import Simplex.Messaging.Server.MsgStore.Types (MsgStoreClass (..), SQSType (..), SMSType (..), newMsgStore)
 import Simplex.Messaging.Server.Stats (PeriodStatsData (..), ServerStatsData (..))
 import Simplex.Messaging.Server.StoreLog (StoreLogRecord (..), closeStoreLog)
 import Simplex.Messaging.Transport
@@ -53,7 +53,7 @@ import Test.HUnit
 import Test.Hspec
 import Util (removeFileIfExists)
 
-serverTests :: SpecWith (ATransport, AMSType)
+serverTests :: SpecWith (ATransport, AStoreType)
 serverTests = do
   describe "SMP queues" $ do
     describe "NEW and KEY commands, SEND messages" testCreateSecure
@@ -139,7 +139,7 @@ decryptMsgV3 dhShared nonce body =
     Right ClientRcvMsgQuota {} -> Left "ClientRcvMsgQuota"
     Left e -> Left e
 
-testCreateSecure :: SpecWith (ATransport, AMSType)
+testCreateSecure :: SpecWith (ATransport, AStoreType)
 testCreateSecure =
   it "should create (NEW) and secure (KEY) queue" $ \(ATransport t, msType) ->
     smpTest2 t msType $ \r s -> do
@@ -204,7 +204,7 @@ testCreateSecure =
       Resp "bcda" _ (ERR LARGE_MSG) <- signSendRecv s sKey ("bcda", sId, _SEND biggerMessage)
       pure ()
 
-testCreateSndSecure :: SpecWith (ATransport, AMSType)
+testCreateSndSecure :: SpecWith (ATransport, AStoreType)
 testCreateSndSecure =
   it "should create (NEW) and secure (SKEY) queue by sender" $ \(ATransport t, msType) ->
     smpTest2 t msType $ \r s -> do
@@ -251,7 +251,7 @@ testCreateSndSecure =
       Resp "bcda" _ (ERR LARGE_MSG) <- signSendRecv s sKey ("bcda", sId, _SEND biggerMessage)
       pure ()
 
-testSndSecureProhibited :: SpecWith (ATransport, AMSType)
+testSndSecureProhibited :: SpecWith (ATransport, AStoreType)
 testSndSecureProhibited =
   it "should create (NEW) without allowing sndSecure and fail to and secure queue by sender (SKEY)" $ \(ATransport t, msType) ->
     smpTest2 t msType $ \r s -> do
@@ -266,7 +266,7 @@ testSndSecureProhibited =
       (sId2, sId) #== "secures queue, same queue ID in response"
       (err, ERR AUTH) #== "rejects SKEY when not allowed in NEW command"
 
-testCreateDelete :: SpecWith (ATransport, AMSType)
+testCreateDelete :: SpecWith (ATransport, AStoreType)
 testCreateDelete =
   it "should create (NEW), suspend (OFF) and delete (DEL) queue" $ \(ATransport t, msType) ->
     smpTest2 t msType $ \rh sh -> do
@@ -337,7 +337,7 @@ testCreateDelete =
       Resp "cdab" _ err10 <- signSendRecv rh rKey ("cdab", rId, SUB)
       (err10, ERR AUTH) #== "rejects SUB when deleted"
 
-stressTest :: SpecWith (ATransport, AMSType)
+stressTest :: SpecWith (ATransport, AStoreType)
 stressTest =
   it "should create many queues, disconnect and re-connect" $ \(ATransport t, msType) ->
     smpTest3 t msType $ \h1 h2 h3 -> do
@@ -355,7 +355,7 @@ stressTest =
       closeConnection $ connection h2
       subscribeQueues h3
 
-testAllowNewQueues :: SpecWith (ATransport, AMSType)
+testAllowNewQueues :: SpecWith (ATransport, AStoreType)
 testAllowNewQueues =
   it "should prohibit creating new queues with allowNewQueues = False" $ \(ATransport (t :: TProxy c), msType) ->
     withSmpServerConfigOn (ATransport t) (cfgMS msType) {allowNewQueues = False} testPort $ \_ ->
@@ -366,7 +366,7 @@ testAllowNewQueues =
         Resp "abcd" NoEntity (ERR AUTH) <- signSendRecv h rKey ("abcd", NoEntity, NEW rPub dhPub Nothing SMSubscribe False)
         pure ()
 
-testDuplex :: SpecWith (ATransport, AMSType)
+testDuplex :: SpecWith (ATransport, AStoreType)
 testDuplex =
   it "should create 2 simplex connections and exchange messages" $ \(ATransport t, msType) ->
     smpTest2 t msType $ \alice bob -> do
@@ -421,7 +421,7 @@ testDuplex =
       Resp "bcda" _ OK <- signSendRecv bob brKey ("bcda", bRcv, ACK mId5)
       (bDec mId5 msg5, Right "how are you bob") #== "message received from alice"
 
-testSwitchSub :: SpecWith (ATransport, AMSType)
+testSwitchSub :: SpecWith (ATransport, AStoreType)
 testSwitchSub =
   it "should create simplex connections and switch subscription to another TCP connection" $ \(ATransport t, msType) ->
     smpTest3 t msType $ \rh1 rh2 sh -> do
@@ -466,7 +466,7 @@ testSwitchSub =
         Nothing -> return ()
         Just _ -> error "nothing else is delivered to the 1st TCP connection"
 
-testGetCommand :: SpecWith (ATransport, AMSType)
+testGetCommand :: SpecWith (ATransport, AStoreType)
 testGetCommand =
   it "should retrieve messages from the queue using GET command" $ \(ATransport (t :: TProxy c), msType) -> do
     g <- C.newRandom
@@ -485,7 +485,7 @@ testGetCommand =
         Resp "4" _ OK <- signSendRecv rh rKey ("4", rId, GET)
         pure ()
 
-testGetSubCommands :: SpecWith (ATransport, AMSType)
+testGetSubCommands :: SpecWith (ATransport, AStoreType)
 testGetSubCommands =
   it "should retrieve messages with GET and receive with SUB, only one ACK would work" $ \(ATransport t, msType) -> do
     g <- C.newRandom
@@ -535,7 +535,7 @@ testGetSubCommands =
       Resp "12" _ OK <- signSendRecv rh2 rKey ("12", rId, GET)
       pure ()
 
-testExceedQueueQuota :: SpecWith (ATransport, AMSType)
+testExceedQueueQuota :: SpecWith (ATransport, AStoreType)
 testExceedQueueQuota =
   it "should reply with ERR QUOTA to sender and send QUOTA message to the recipient" $ \(ATransport (t :: TProxy c), msType) -> do
     withSmpServerConfigOn (ATransport t) (cfgMS msType) {msgQueueQuota = 2} testPort $ \_ ->
@@ -562,7 +562,7 @@ testExceedQueueQuota =
         Resp "10" _ OK <- signSendRecv rh rKey ("10", rId, ACK mId4)
         pure ()
 
-testWithStoreLog :: SpecWith (ATransport, AMSType)
+testWithStoreLog :: SpecWith (ATransport, AStoreType)
 testWithStoreLog =
   it "should store simplex queues to log and restore them after server restart" $ \(at@(ATransport t), msType) -> do
     g <- C.newRandom
@@ -576,7 +576,8 @@ testWithStoreLog =
     senderId2 <- newTVarIO NoEntity
     notifierId <- newTVarIO NoEntity
 
-    withSmpServerStoreLogOnMS at msType testPort . runTest t $ \h -> runClient t $ \h1 -> do
+    let (cfg', compacting) = serverStoreLogCfg msType
+    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> runClient t $ \h1 -> do
       (sId1, rId1, rKey1, dhShared) <- createAndSecureQueue h sPub1
       (rcvNtfPubDhKey, _) <- atomically $ C.generateKeyPair g
       Resp "abcd" _ (NID nId _) <- signSendRecv h rKey1 ("abcd", rId1, NKEY nPub rcvNtfPubDhKey)
@@ -609,14 +610,14 @@ testWithStoreLog =
 
     logSize testStoreLogFile `shouldReturn` 6
 
-    let cfg' = (cfgMS msType) {msgStoreType = AMSType SMSMemory, storeLogFile = Nothing, storeMsgsFile = Nothing}
-    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> do
+    let cfg'' = cfg {serverStoreCfg = ASSCfg SQSMemory SMSMemory $ SSCMemory Nothing}
+    withSmpServerConfigOn at cfg'' testPort . runTest t $ \h -> do
       sId1 <- readTVarIO senderId1
       -- fails if store log is disabled
       Resp "bcda" _ (ERR AUTH) <- signSendRecv h sKey1 ("bcda", sId1, _SEND "hello")
       pure ()
 
-    withSmpServerStoreLogOnMS at msType testPort . runTest t $ \h -> runClient t $ \h1 -> do
+    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> runClient t $ \h1 -> do
       -- this queue is restored
       rId1 <- readTVarIO recipientId1
       Just rKey1 <- readTVarIO recipientKey1
@@ -633,7 +634,8 @@ testWithStoreLog =
       Resp "cdab" _ (ERR AUTH) <- signSendRecv h sKey2 ("cdab", sId2, _SEND "hello too")
       pure ()
 
-    logSize testStoreLogFile `shouldReturn` 1
+    -- when (usesStoreLog ps) $ do
+    logSize testStoreLogFile `shouldReturn` (if compacting then 1 else 6)
     removeFile testStoreLogFile
   where
     runTest :: Transport c => TProxy c -> (THandleSMP c 'TClient -> IO ()) -> ThreadId -> Expectation
@@ -644,13 +646,26 @@ testWithStoreLog =
     runClient :: Transport c => TProxy c -> (THandleSMP c 'TClient -> IO ()) -> Expectation
     runClient _ test' = testSMPClient test' `shouldReturn` ()
 
-logSize :: FilePath -> IO Int
-logSize f =
-  try (length . B.lines <$> B.readFile f) >>= \case
-    Right l -> pure l
-    Left (_ :: SomeException) -> logSize f
+serverStoreLogCfg :: AStoreType -> (ServerConfig, Bool)
+serverStoreLogCfg msType = 
+  let serverStoreCfg = serverStoreConfig_ True msType
+      cfg' = (cfgMS msType) {serverStoreCfg, storeNtfsFile = Just testStoreNtfsFile, serverStatsBackupFile = Just testServerStatsBackupFile}
+      compacting = case msType of
+        ASType SQSPostgres _ -> False
+        _ -> True
+   in (cfg', compacting)
 
-testRestoreMessages :: SpecWith (ATransport, AMSType)
+logSize :: FilePath -> IO Int
+logSize f = go (10 :: Int)
+  where
+    go n =
+      try (length . B.lines <$> B.readFile f) >>= \case
+        Right l -> pure l
+        Left (e :: SomeException)
+          | n > 0 -> threadDelay 100000 >> go (n - 1)
+          | otherwise -> throwIO e
+
+testRestoreMessages :: SpecWith (ATransport, AStoreType)
 testRestoreMessages =
   it "should store messages on exit and restore on start" $ \(at@(ATransport t), msType) -> do
     removeFileIfExists testStoreLogFile
@@ -664,8 +679,8 @@ testRestoreMessages =
     recipientKey <- newTVarIO Nothing
     dhShared <- newTVarIO Nothing
     senderId <- newTVarIO NoEntity
-
-    withSmpServerStoreMsgLogOnMS at msType testPort . runTest t $ \h -> do
+    let (cfg', compacting) = serverStoreLogCfg msType
+    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> do
       runClient t $ \h1 -> do
         (sId, rId, rKey, dh) <- createAndSecureQueue h1 sPub
         atomically $ do
@@ -685,16 +700,12 @@ testRestoreMessages =
       Resp "5" _ OK <- signSendRecv h sKey ("5", sId, _SEND "hello 5")
       Resp "6" _ (ERR QUOTA) <- signSendRecv h sKey ("6", sId, _SEND "hello 6")
       pure ()
-
     rId <- readTVarIO recipientId
-
     logSize testStoreLogFile `shouldReturn` 2
-    -- logSize testStoreMsgsFile `shouldReturn` 5
     logSize testServerStatsBackupFile `shouldReturn` 76
     Right stats1 <- strDecode <$> B.readFile testServerStatsBackupFile
     checkStats stats1 [rId] 5 1
-
-    withSmpServerStoreMsgLogOnMS at msType testPort . runTest t $ \h -> do
+    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> do
       Just rKey <- readTVarIO recipientKey
       Just dh <- readTVarIO dhShared
       let dec = decryptMsgV3 dh
@@ -704,15 +715,14 @@ testRestoreMessages =
       (dec mId3 msg3, Right "hello 3") #== "restored message delivered"
       Resp "4" _ (Msg mId4 msg4) <- signSendRecv h rKey ("4", rId, ACK mId3)
       (dec mId4 msg4, Right "hello 4") #== "restored message delivered"
-
-    logSize testStoreLogFile `shouldReturn` 1
+    logSize testStoreLogFile `shouldReturn` (if compacting then 1 else 2)
     -- the last message is not removed because it was not ACK'd
     -- logSize testStoreMsgsFile `shouldReturn` 3
     logSize testServerStatsBackupFile `shouldReturn` 76
     Right stats2 <- strDecode <$> B.readFile testServerStatsBackupFile
     checkStats stats2 [rId] 5 3
 
-    withSmpServerStoreMsgLogOnMS at msType testPort . runTest t $ \h -> do
+    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> do
       Just rKey <- readTVarIO recipientKey
       Just dh <- readTVarIO dhShared
       let dec = decryptMsgV3 dh
@@ -724,13 +734,11 @@ testRestoreMessages =
       (dec mId6 msg6, Left "ClientRcvMsgQuota") #== "restored message delivered"
       Resp "7" _ OK <- signSendRecv h rKey ("7", rId, ACK mId6)
       pure ()
-    logSize testStoreLogFile `shouldReturn` 1
-    -- logSize testStoreMsgsFile `shouldReturn` 0
+    logSize testStoreLogFile `shouldReturn` (if compacting then 1 else 2)
+    removeFile testStoreLogFile
     logSize testServerStatsBackupFile `shouldReturn` 76
     Right stats3 <- strDecode <$> B.readFile testServerStatsBackupFile
     checkStats stats3 [rId] 5 5
-
-    removeFile testStoreLogFile
     removeFileIfExists testStoreMsgsFile
     whenM (doesDirectoryExist testStoreMsgsDir) $ removeDirectoryRecursive testStoreMsgsDir
     removeFile testServerStatsBackupFile
@@ -759,17 +767,17 @@ checkStats s qs sent received = do
   IS.toList _week `shouldBe` map (hash . unEntityId) qs
   IS.toList _month `shouldBe` map (hash . unEntityId) qs
 
-testRestoreExpireMessages :: SpecWith (ATransport, AMSType)
+testRestoreExpireMessages :: SpecWith (ATransport, AStoreType)
 testRestoreExpireMessages =
-  it "should store messages on exit and restore on start" $ \(at@(ATransport t), msType) -> do
+  it "should store messages on exit and restore on start (old / v2)" $ \(at@(ATransport t), msType) -> do
     g <- C.newRandom
     (sPub, sKey) <- atomically $ C.generateAuthKeyPair C.SEd25519 g
     recipientId <- newTVarIO NoEntity
     recipientKey <- newTVarIO Nothing
     dhShared <- newTVarIO Nothing
     senderId <- newTVarIO NoEntity
-
-    withSmpServerStoreMsgLogOnMS at msType testPort . runTest t $ \h -> do
+    let (cfg', _compacting) = serverStoreLogCfg msType
+    withSmpServerConfigOn at cfg' testPort . runTest t $ \h -> do
       runClient t $ \h1 -> do
         (sId, rId, rKey, dh) <- createAndSecureQueue h1 sPub
         atomically $ do
@@ -784,23 +792,21 @@ testRestoreExpireMessages =
       Resp "3" _ OK <- signSendRecv h sKey ("3", sId, _SEND "hello 3")
       Resp "4" _ OK <- signSendRecv h sKey ("4", sId, _SEND "hello 4")
       pure ()
-
     logSize testStoreLogFile `shouldReturn` 2
     exportStoreMessages msType
     msgs <- B.readFile testStoreMsgsFile
     length (B.lines msgs) `shouldBe` 4
 
     let expCfg1 = Just ExpirationConfig {ttl = 86400, checkInterval = 43200}
-        cfg1 = (cfgMS msType) {messageExpiration = expCfg1, serverStatsBackupFile = Just testServerStatsBackupFile}
+        cfg1 = cfg' {messageExpiration = expCfg1, serverStatsBackupFile = Just testServerStatsBackupFile}
     withSmpServerConfigOn at cfg1 testPort . runTest t $ \_ -> pure ()
 
     logSize testStoreLogFile `shouldReturn` 1
     exportStoreMessages msType
     msgs' <- B.readFile testStoreMsgsFile
     msgs' `shouldBe` msgs
-
     let expCfg2 = Just ExpirationConfig {ttl = 2, checkInterval = 43200}
-        cfg2 = (cfgMS msType) {messageExpiration = expCfg2, serverStatsBackupFile = Just testServerStatsBackupFile}
+        cfg2 = cfg' {messageExpiration = expCfg2, serverStatsBackupFile = Just testServerStatsBackupFile}
     withSmpServerConfigOn at cfg2 testPort . runTest t $ \_ -> pure ()
 
     logSize testStoreLogFile `shouldReturn` 1
@@ -812,14 +818,17 @@ testRestoreExpireMessages =
     Right ServerStatsData {_msgExpired} <- strDecode <$> B.readFile testServerStatsBackupFile
     _msgExpired `shouldBe` 2
   where
-    exportStoreMessages :: AMSType -> IO ()
+    exportStoreMessages :: AStoreType -> IO ()
     exportStoreMessages = \case
-      AMSType SMSJournal -> do
-        ms <- newMsgStore testJournalStoreCfg {quota = 4}
-        readWriteQueueStore testStoreLogFile ms >>= closeStoreLog
-        removeFileIfExists testStoreMsgsFile
-        exportMessages False ms testStoreMsgsFile False
-      AMSType SMSMemory -> pure ()
+      ASType _ SMSJournal -> export
+      ASType _ SMSMemory -> pure ()
+      where
+        export = do
+          ms <- newMsgStore (testJournalStoreCfg MQStoreCfg) {quota = 4}
+          readWriteQueueStore True (mkQueue ms) testStoreLogFile (queueStore ms) >>= closeStoreLog
+          removeFileIfExists testStoreMsgsFile
+          exportMessages False ms testStoreMsgsFile False
+          closeMsgStore ms
     runTest :: Transport c => TProxy c -> (THandleSMP c 'TClient -> IO ()) -> ThreadId -> Expectation
     runTest _ test' server = do
       testSMPClient test' `shouldReturn` ()
@@ -828,7 +837,7 @@ testRestoreExpireMessages =
     runClient :: Transport c => TProxy c -> (THandleSMP c 'TClient -> IO ()) -> Expectation
     runClient _ test' = testSMPClient test' `shouldReturn` ()
 
-testPrometheusMetrics :: SpecWith (ATransport, AMSType)
+testPrometheusMetrics :: SpecWith (ATransport, AStoreType)
 testPrometheusMetrics =
   it "should save Prometheus metrics" $ \(at, msType) -> do
     let cfg' = (cfgMS msType) {prometheusInterval = Just 1}
@@ -846,7 +855,7 @@ createAndSecureQueue h sPub = do
   (rId', rId) #== "same queue ID"
   pure (sId, rId, rKey, dhShared)
 
-testTiming :: SpecWith (ATransport, AMSType)
+testTiming :: SpecWith (ATransport, AStoreType)
 testTiming =
   describe "should have similar time for auth error, whether queue exists or not, for all key types" $
     forM_ timingTests $ \tst ->
@@ -916,7 +925,7 @@ testTiming =
             ]
           ok `shouldBe` True
 
-testMessageNotifications :: SpecWith (ATransport, AMSType)
+testMessageNotifications :: SpecWith (ATransport, AStoreType)
 testMessageNotifications =
   it "should create simplex connection, subscribe notifier and deliver notifications" $ \(ATransport t, msType) -> do
     g <- C.newRandom
@@ -956,7 +965,7 @@ testMessageNotifications =
         Nothing -> pure ()
         Just _ -> error "nothing else should be delivered to the 2nd notifier's TCP connection"
 
-testMsgExpireOnSend :: SpecWith (ATransport, AMSType)
+testMsgExpireOnSend :: SpecWith (ATransport, AStoreType)
 testMsgExpireOnSend =
   it "should expire messages that are not received before messageTTL on SEND" $ \(ATransport (t :: TProxy c), msType) -> do
     g <- C.newRandom
@@ -976,7 +985,7 @@ testMsgExpireOnSend =
             Nothing -> return ()
             Just _ -> error "nothing else should be delivered"
 
-testMsgExpireOnInterval :: SpecWith (ATransport, AMSType)
+testMsgExpireOnInterval :: SpecWith (ATransport, AStoreType)
 testMsgExpireOnInterval =
   -- fails on ubuntu
   xit' "should expire messages that are not received before messageTTL after expiry interval" $ \(ATransport (t :: TProxy c), msType) -> do
@@ -996,7 +1005,7 @@ testMsgExpireOnInterval =
             Nothing -> return ()
             Just _ -> error "nothing should be delivered"
 
-testMsgNOTExpireOnInterval :: SpecWith (ATransport, AMSType)
+testMsgNOTExpireOnInterval :: SpecWith (ATransport, AStoreType)
 testMsgNOTExpireOnInterval =
   it "should block and unblock message queues" $ \(ATransport (t :: TProxy c), msType) -> do
     g <- C.newRandom
@@ -1015,20 +1024,22 @@ testMsgNOTExpireOnInterval =
             Nothing -> return ()
             Just _ -> error "nothing else should be delivered"
 
-testBlockMessageQueue :: SpecWith (ATransport, AMSType)
+testBlockMessageQueue :: SpecWith (ATransport, AStoreType)
 testBlockMessageQueue =
-  it "should return BLOCKED error when queue is blocked" $ \(at@(ATransport (t :: TProxy c)), msType) -> do
+  -- TODO [postgres]
+  xit "should return BLOCKED error when queue is blocked" $ \ps@(ATransport (t :: TProxy c), _) -> do
     g <- C.newRandom
-    (rId, sId) <- withSmpServerStoreLogOnMS at msType testPort $ runTest t $ \h -> do
+    (rId, sId) <- withSmpServerStoreLogOn ps testPort $ runTest t $ \h -> do
       (rPub, rKey) <- atomically $ C.generateAuthKeyPair C.SEd448 g
       (dhPub, _dhPriv :: C.PrivateKeyX25519) <- atomically $ C.generateKeyPair g
       Resp "abcd" rId1 (Ids rId sId _srvDh) <- signSendRecv h rKey ("abcd", NoEntity, NEW rPub dhPub Nothing SMSubscribe True)
       (rId1, NoEntity) #== "creates queue"
       pure (rId, sId)
 
+    -- TODO [postgres] block via control port
     withFile testStoreLogFile AppendMode $ \h -> B.hPutStrLn h $ strEncode $ BlockQueue rId $ BlockingInfo BRContent
 
-    withSmpServerStoreLogOnMS at msType testPort $ runTest t $ \h -> do
+    withSmpServerStoreLogOn ps testPort $ runTest t $ \h -> do
       (sPub, sKey) <- atomically $ C.generateAuthKeyPair C.SEd448 g
       Resp "dabc" sId2 (ERR (BLOCKED (BlockingInfo BRContent))) <- signSendRecv h sKey ("dabc", sId, SKEY sPub)
       (sId2, sId) #== "same queue ID in response"
diff --git a/tests/Test.hs b/tests/Test.hs
index 09fb856fd..14007eed8 100644
--- a/tests/Test.hs
+++ b/tests/Test.hs
@@ -25,7 +25,8 @@ import NtfServerTests (ntfServerTests)
 import RemoteControl (remoteControlTests)
 import SMPProxyTests (smpProxyTests)
 import ServerTests
-import Simplex.Messaging.Server.MsgStore.Types (AMSType (..), SMSType (..))
+import Simplex.Messaging.Server.Env.STM (AStoreType (..))
+import Simplex.Messaging.Server.MsgStore.Types (SMSType (..), SQSType (..))
 import Simplex.Messaging.Transport (TLS, Transport (..))
 -- import Simplex.Messaging.Transport.WebSockets (WS)
 import System.Directory (createDirectoryIfMissing, removeDirectoryRecursive)
@@ -34,13 +35,22 @@ import Test.Hspec
 import XFTPAgent
 import XFTPCLI
 import XFTPServerTests (xftpServerTests)
+
 #if defined(dbPostgres)
 import Fixtures
-import Simplex.Messaging.Agent.Store.Postgres.Util (createDBAndUserIfNotExists, dropDatabaseAndUser)
 #else
 import AgentTests.SchemaDump (schemaDumpTest)
 #endif
 
+#if defined(dbServerPostgres)
+import SMPClient (testServerDBConnectInfo)
+#endif
+
+#if defined(dbPostgres) || defined(dbServerPostgres)
+import Database.PostgreSQL.Simple (ConnectInfo (..))
+import Simplex.Messaging.Agent.Store.Postgres.Util (createDBAndUserIfNotExists, dropDatabaseAndUser)
+#endif
+
 logCfg :: LogConfig
 logCfg = LogConfig {lc_file = Nothing, lc_stderr = True}
 
@@ -52,8 +62,7 @@ main = do
     setEnv "APNS_KEY_FILE" "./tests/fixtures/AuthKey_H82WD9K9AQ.p8"
     hspec
 #if defined(dbPostgres)
-      . beforeAll_ (dropDatabaseAndUser testDBConnectInfo >> createDBAndUserIfNotExists testDBConnectInfo)
-      . afterAll_ (dropDatabaseAndUser testDBConnectInfo)
+      . aroundAll_ (postgressBracket testDBConnectInfo)
 #endif
       . before_ (createDirectoryIfMissing False "tests/tmp")
       . after_ (eventuallyRemove "tests/tmp" 3)
@@ -74,17 +83,30 @@ main = do
           describe "Store log tests" storeLogTests
           describe "TRcvQueues tests" tRcvQueuesTests
           describe "Util tests" utilTests
+#if defined(dbServerPostgres)
+        aroundAll_ (postgressBracket testServerDBConnectInfo)
+          $ describe "SMP server via TLS, postgres+jornal message store" $ do
+              describe "SMP syntax" $ serverSyntaxTests (transport @TLS)
+              before (pure (transport @TLS, ASType SQSPostgres SMSJournal)) serverTests
+#endif
         describe "SMP server via TLS, jornal message store" $ do
           describe "SMP syntax" $ serverSyntaxTests (transport @TLS)
-          before (pure (transport @TLS, AMSType SMSJournal)) serverTests
+          before (pure (transport @TLS, ASType SQSMemory SMSJournal)) serverTests
         describe "SMP server via TLS, memory message store" $
-          before (pure (transport @TLS, AMSType SMSMemory)) serverTests
+          before (pure (transport @TLS, ASType SQSMemory SMSMemory)) serverTests
         -- xdescribe "SMP server via WebSockets" $ do
         --   describe "SMP syntax" $ serverSyntaxTests (transport @WS)
-        --   before (pure (transport @WS, AMSType SMSJournal)) serverTests
+        --   before (pure (transport @WS, ASType SQSMemory SMSJournal)) serverTests
         describe "Notifications server" $ ntfServerTests (transport @TLS)
-        describe "SMP client agent" $ agentTests (transport @TLS)
-        describe "SMP proxy" smpProxyTests
+#if defined(dbServerPostgres)
+        aroundAll_ (postgressBracket testServerDBConnectInfo) $ do
+          describe "SMP client agent, postgres+jornal message store" $ agentTests (transport @TLS, ASType SQSPostgres SMSJournal)
+          describe "SMP proxy, postgres+jornal message store" $
+            before (pure $ ASType SQSPostgres SMSJournal) smpProxyTests
+#endif
+        describe "SMP client agent, jornal message store" $ agentTests (transport @TLS, ASType SQSMemory SMSJournal)
+        describe "SMP proxy, jornal message store" $
+          before (pure $ ASType SQSMemory SMSJournal) smpProxyTests
         describe "XFTP" $ do
           describe "XFTP server" xftpServerTests
           describe "XFTP file description" fileDescriptionTests
@@ -102,3 +124,11 @@ eventuallyRemove path retries = case retries of
       _ -> E.throwIO ioe
   where
     action = removeDirectoryRecursive path
+
+#if defined(dbPostgres) || defined(dbServerPostgres)
+postgressBracket :: ConnectInfo -> IO a -> IO a
+postgressBracket connInfo =
+  E.bracket_
+    (dropDatabaseAndUser connInfo >> createDBAndUserIfNotExists connInfo)
+    (dropDatabaseAndUser connInfo)
+#endif