diff --git a/gajim/common/connection_handlers_events.py b/gajim/common/connection_handlers_events.py
index 98d03a64d..2c8596a57 100644
--- a/gajim/common/connection_handlers_events.py
+++ b/gajim/common/connection_handlers_events.py
@@ -1061,6 +1061,7 @@ class MamMessageReceivedEvent(nec.NetworkIncomingEvent, HelperEvent):
         self.nick = None
 
     def generate(self):
+        account = self.conn.name
         archive_jid = self.stanza.getFrom()
         own_jid = self.conn.get_own_jid()
         if archive_jid and not archive_jid.bareMatch(own_jid):
@@ -1076,7 +1077,8 @@ class MamMessageReceivedEvent(nec.NetworkIncomingEvent, HelperEvent):
         self.unique_id, origin_id = self.get_unique_id()
 
         # Check for duplicates
-        if app.logger.find_stanza_id(own_jid.getStripped(),
+        if app.logger.find_stanza_id(account,
+                                     own_jid.getStripped(),
                                      self.unique_id, origin_id):
             return
 
@@ -1151,6 +1153,7 @@ class MamGcMessageReceivedEvent(nec.NetworkIncomingEvent, HelperEvent):
         self.kind = KindConstant.GC_MSG
 
     def generate(self):
+        account = self.conn.name
         self.msg_ = self.forwarded.getTag('message', protocol=True)
 
         if self.msg_.getType() != 'groupchat':
@@ -1161,7 +1164,9 @@ class MamGcMessageReceivedEvent(nec.NetworkIncomingEvent, HelperEvent):
         self.unique_id = self.get_stanza_id(self.result, query=True)
 
         # Check for duplicates
-        if app.logger.find_stanza_id(self.room_jid, self.unique_id,
+        if app.logger.find_stanza_id(account,
+                                     self.room_jid,
+                                     self.unique_id,
                                      groupchat=True):
             return
 
@@ -1285,7 +1290,8 @@ class MessageReceivedEvent(nec.NetworkIncomingEvent, HelperEvent):
         # Check groupchat messages for duplicates,
         # We do this because of MUC History messages
         if self.stanza.getType() == 'groupchat':
-            if app.logger.find_stanza_id(self.stanza.getFrom().getStripped(),
+            if app.logger.find_stanza_id(account,
+                                         self.stanza.getFrom().getStripped(),
                                          self.unique_id,
                                          groupchat=True):
                 return
diff --git a/gajim/common/logger.py b/gajim/common/logger.py
index 6fe0bddda..cb2b3a2de 100644
--- a/gajim/common/logger.py
+++ b/gajim/common/logger.py
@@ -1057,10 +1057,12 @@ class Logger:
         self.con.executescript(sql)
         self._timeout_commit()
 
-    def search_for_duplicate(self, jid, timestamp, msg):
+    def search_for_duplicate(self, account, jid, timestamp, msg):
         """
         Check if a message is already in the `logs` table
 
+        :param account:     The account
+
         :param jid:         The jid as string
 
         :param timestamp:   The timestamp in UTC epoch
@@ -1072,27 +1074,31 @@ class Logger:
         start_time = timestamp - 10
         end_time = timestamp + 10
 
+        account_id = self.get_account_id(account)
         log.debug('start: %s, end: %s, jid: %s, message: %s',
                   start_time, end_time, jid, msg)
 
         sql = '''
             SELECT * FROM logs
-            NATURAL JOIN jids WHERE jid = ? AND message = ?
+            NATURAL JOIN jids WHERE jid = ? AND message = ? AND account_id = ?
             AND time BETWEEN ? AND ?
             '''
 
-        result = self.con.execute(sql, (jid, msg, start_time, end_time)).fetchone()
+        result = self.con.execute(
+            sql, (jid, msg, account_id, start_time, end_time)).fetchone()
 
         if result is not None:
             log.debug('Message already in DB')
             return True
         return False
 
-    def find_stanza_id(self, archive_jid, stanza_id, origin_id=None,
+    def find_stanza_id(self, account, archive_jid, stanza_id, origin_id=None,
                        groupchat=False):
         """
         Checks if a stanza-id is already in the `logs` table
 
+        :param account:     The account
+
         :param archive_jid: The jid of the archive the stanza-id belongs to
 
         :param stanza_id:   The stanza-id
@@ -1113,22 +1119,30 @@ class Logger:
             return False
 
         archive_id = self.get_jid_id(archive_jid)
+        account_id = self.get_account_id(account)
+
         if groupchat:
-            column = 'jid_id'
+            # Stanza ID is only unique within a specific archive.
+            # So a Stanza ID could be repeated in different MUCs, so we
+            # filter also for the archive JID
+            sql = '''
+                SELECT stanza_id FROM logs
+                WHERE stanza_id IN ({values})
+                AND jid_id = ? AND account_id = ? LIMIT 1
+                '''.format(values=', '.join('?' * len(ids)))
+            result = self.con.execute(
+                sql, tuple(ids) + (archive_id, account_id)).fetchone()
         else:
-            column = 'account_id'
-
-        sql = '''
-              SELECT stanza_id FROM logs
-              WHERE stanza_id IN ({values}) AND {archive} = ? LIMIT 1
-              '''.format(values=', '.join('?' * len(ids)),
-                         archive=column)
-
-        result = self.con.execute(sql, tuple(ids) + (archive_id,)).fetchone()
+            sql = '''
+                SELECT stanza_id FROM logs
+                WHERE stanza_id IN ({values}) AND account_id = ? LIMIT 1
+                '''.format(values=', '.join('?' * len(ids)))
+            result = self.con.execute(
+                sql, tuple(ids) + (account_id,)).fetchone()
 
         if result is not None:
-            log.info('Found duplicated message, stanza-id: %s, origin-id: %s',
-                     stanza_id, origin_id)
+            log.info('Found duplicated message, stanza-id: %s, origin-id: %s, '
+                     'archive-jid: %s, account: %s', stanza_id, origin_id, archive_id, account_id)
             return True
         return False
 
diff --git a/gajim/common/message_archiving.py b/gajim/common/message_archiving.py
index f4d300419..affeaca16 100644
--- a/gajim/common/message_archiving.py
+++ b/gajim/common/message_archiving.py
@@ -203,7 +203,7 @@ class ConnectionArchive313:
         # if self.archiving_namespace != nbxmpp.NS_MAM_2:
         # Fallback duplicate search without stanza-id
         duplicate = app.logger.search_for_duplicate(
-            obj.with_, obj.timestamp, obj.msgtxt)
+            self.name, obj.with_, obj.timestamp, obj.msgtxt)
         if duplicate:
             # dont propagate the event further
             return True