diff --git a/DMS/docker-compose.yml b/DMS/docker-compose.yml
index 918b84f..7d7f363 100644
--- a/DMS/docker-compose.yml
+++ b/DMS/docker-compose.yml
@@ -120,6 +120,7 @@ services:
       mail_network:
         aliases:
           - mailserver
+          - node1.email-srvr.com
 
   roundcube:
     image: roundcube/roundcubemail:latest
@@ -135,10 +136,10 @@ services:
       - ROUNDCUBEMAIL_DB_USER=roundcube
       - ROUNDCUBEMAIL_DB_PASSWORD=${ROUNDCUBE_DB_PASSWORD}
       # Roundcube verbindet intern über den Docker-Alias
-      - ROUNDCUBEMAIL_DEFAULT_HOST=tls://mailserver  # kein ssl:// prefix
-      - ROUNDCUBEMAIL_DEFAULT_PORT=143               # IMAP ohne SSL
-      - ROUNDCUBEMAIL_SMTP_SERVER=mailserver         # kein tls:// prefix  
-      - ROUNDCUBEMAIL_SMTP_PORT=25                   # SMTP intern direkt
+      - ROUNDCUBEMAIL_DEFAULT_HOST=ssl://node1.email-srvr.com
+      - ROUNDCUBEMAIL_DEFAULT_PORT=993
+      - ROUNDCUBEMAIL_SMTP_SERVER=tls://node1.email-srvr.com
+      - ROUNDCUBEMAIL_SMTP_PORT=587
       - ROUNDCUBEMAIL_PLUGINS=password,email_config
     ports:
       - "8888:80"
diff --git a/DMS/docker-data/roundcube/plugins/email_config/config/config.inc.php b/DMS/docker-data/roundcube/plugins/email_config/config/config.inc.php
deleted file mode 100644
index 7fb1067..0000000
--- a/DMS/docker-data/roundcube/plugins/email_config/config/config.inc.php
+++ /dev/null
@@ -1,14 +0,0 @@
-<?php
-// TLS-Verifikation intern deaktivieren (Roundcube → DMS im Docker-Netz)
-$config['imap_conn_options'] = [
-    'ssl' => [
-        'verify_peer'       => false,
-        'verify_peer_name'  => false,
-    ],
-];
-$config['smtp_conn_options'] = [
-    'ssl' => [
-        'verify_peer'       => false,
-        'verify_peer_name'  => false,
-    ],
-];
\ No newline at end of file
diff --git a/DMS/docker-data/roundcube/plugins/email_config/config/tls.inc.php b/DMS/docker-data/roundcube/plugins/email_config/config/tls.inc.php
deleted file mode 100644
index b88fcb9..0000000
--- a/DMS/docker-data/roundcube/plugins/email_config/config/tls.inc.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-$config['imap_conn_options'] = [
-    'ssl' => [
-        'verify_peer'      => false,
-        'verify_peer_name' => false,
-    ],
-];
-$config['smtp_conn_options'] = [
-    'ssl' => [
-        'verify_peer'      => false,
-        'verify_peer_name' => false,
-    ],
-];
\ No newline at end of file