diff --git a/email-worker-nodejs/docker-compose.yml b/email-worker-nodejs/docker-compose.yml
index 5289f4f..4bfad38 100644
--- a/email-worker-nodejs/docker-compose.yml
+++ b/email-worker-nodejs/docker-compose.yml
@@ -10,12 +10,15 @@ services:
     ports:
       - "9000:8000"   # Prometheus metrics (Host:Container)
       - "9090:8080"   # Health check (Host:Container)
-    # Connect to DMS on the host or Docker network
-    extra_hosts:
-      - "host.docker.internal:host-gateway"
     environment:
       - SMTP_HOST=host.docker.internal
       - SMTP_PORT=25
+    networks:
+          - mail_network      
 
 volumes:
   worker-logs:
+# Netzwerk am Ende der Datei deklarieren
+networks:
+  mail_network:
+    external: true
\ No newline at end of file