diff --git a/pkg/mongodb/MongodbConnectionFactory.php b/pkg/mongodb/MongodbConnectionFactory.php
index a5148f1c0..3d7624904 100644
--- a/pkg/mongodb/MongodbConnectionFactory.php
+++ b/pkg/mongodb/MongodbConnectionFactory.php
@@ -27,7 +27,7 @@ class MongodbConnectionFactory implements ConnectionFactory
      *
      * or
      *
-     * mongodb://127.0.0.1:27017/dbname?polling_interval=1000&enqueue_collection=enqueue
+     * mongodb://127.0.0.1:27017/defaultauthdb?polling_interval=1000&enqueue_database=enqueue&enqueue_collection=enqueue
      *
      * @param array|string|null $config
      */
@@ -38,7 +38,10 @@ public function __construct($config = 'mongodb:')
         } elseif (is_string($config)) {
             $config = $this->parseDsn($config);
         } elseif (is_array($config)) {
-            $config = $this->parseDsn(empty($config['dsn']) ? 'mongodb:' : $config['dsn']);
+            $config = array_replace(
+                $config,
+                $this->parseDsn(empty($config['dsn']) ? 'mongodb:' : $config['dsn'])
+            );
         } else {
             throw new \LogicException('The config must be either an array of options, a DSN string or null');
         }
@@ -74,11 +77,7 @@ public static function parseDsn(string $dsn): array
             'mongodb' => true,
         ];
         if (false == isset($parsedUrl['scheme'])) {
-            throw new \LogicException(sprintf(
-                'The given DSN schema "%s" is not supported. There are supported schemes: "%s".',
-                $parsedUrl['scheme'],
-                implode('", "', array_keys($supported))
-            ));
+            throw new \LogicException(sprintf('The given DSN schema "%s" is not supported. There are supported schemes: "%s".', $parsedUrl['scheme'], implode('", "', array_keys($supported))));
         }
         if ('mongodb:' === $dsn) {
             return [
@@ -86,6 +85,8 @@ public static function parseDsn(string $dsn): array
             ];
         }
         $config['dsn'] = $dsn;
+        // FIXME this is NOT a dbname but rather authdb. But removing this would be a BC break.
+        // see: https://github.com/php-enqueue/enqueue-dev/issues/1027
         if (isset($parsedUrl['path']) && '/' !== $parsedUrl['path']) {
             $pathParts = explode('/', $parsedUrl['path']);
             //DB name
@@ -103,6 +104,9 @@ public static function parseDsn(string $dsn): array
             if (!empty($queryParts['enqueue_collection'])) {
                 $config['collection_name'] = $queryParts['enqueue_collection'];
             }
+            if (!empty($queryParts['enqueue_database'])) {
+                $config['dbname'] = $queryParts['enqueue_database'];
+            }
         }
 
         return $config;
diff --git a/pkg/mongodb/MongodbProducer.php b/pkg/mongodb/MongodbProducer.php
index d27f014eb..d26696cf8 100644
--- a/pkg/mongodb/MongodbProducer.php
+++ b/pkg/mongodb/MongodbProducer.php
@@ -77,10 +77,7 @@ public function send(Destination $destination, Message $message): void
         $delay = $message->getDeliveryDelay();
         if ($delay) {
             if (!is_int($delay)) {
-                throw new \LogicException(sprintf(
-                    'Delay must be integer but got: "%s"',
-                    is_object($delay) ? get_class($delay) : gettype($delay)
-                ));
+                throw new \LogicException(sprintf('Delay must be integer but got: "%s"', is_object($delay) ? get_class($delay) : gettype($delay)));
             }
 
             if ($delay <= 0) {
@@ -93,10 +90,7 @@ public function send(Destination $destination, Message $message): void
         $timeToLive = $message->getTimeToLive();
         if ($timeToLive) {
             if (!is_int($timeToLive)) {
-                throw new \LogicException(sprintf(
-                    'TimeToLive must be integer but got: "%s"',
-                    is_object($timeToLive) ? get_class($timeToLive) : gettype($timeToLive)
-                ));
+                throw new \LogicException(sprintf('TimeToLive must be integer but got: "%s"', is_object($timeToLive) ? get_class($timeToLive) : gettype($timeToLive)));
             }
 
             if ($timeToLive <= 0) {
@@ -110,7 +104,7 @@ public function send(Destination $destination, Message $message): void
             $collection = $this->context->getCollection();
             $collection->insertOne($mongoMessage);
         } catch (\Exception $e) {
-            throw new Exception('The transport has failed to send the message due to some internal error.', null, $e);
+            throw new Exception('The transport has failed to send the message due to some internal error.', $e->getCode(), $e);
         }
     }