diff --git a/DMS/docker-compose.yml b/DMS/docker-compose.yml
index 4ebf0d7..bfe3dda 100644
--- a/DMS/docker-compose.yml
+++ b/DMS/docker-compose.yml
@@ -137,8 +137,8 @@ services:
       # Roundcube verbindet intern über den Docker-Alias
       - ROUNDCUBEMAIL_DEFAULT_HOST=ssl://node1.email-srvr.com
       - ROUNDCUBEMAIL_DEFAULT_PORT=993
-      - ROUNDCUBEMAIL_SMTP_SERVER=tls://mailserver     # intern, kein externer DNS-SNI-Chaos
-      - ROUNDCUBEMAIL_SMTP_PORT=587
+      - ROUNDCUBEMAIL_SMTP_SERVER=ssl://node1.email-srvr.com     # intern, kein externer DNS-SNI-Chaos
+      - ROUNDCUBEMAIL_SMTP_PORT=465
       - ROUNDCUBEMAIL_PLUGINS=password,email_config
       # NEU: Schaltet die strikte PHP-Zertifikatsprüfung für interne Verbindungen ab
       - ROUNDCUBEMAIL_IMAP_CONN_OPTIONS={"ssl":{"verify_peer":false,"verify_peer_name":false}}