Try smtp with metallb

manifests/mailu/values.yaml

@@ -34,30 +34,25 @@ tls:
   certmanager:
     enabled: true
 
-# Internal service (ClusterIP)
-service:
-  front:
-    type: ClusterIP
-    port: 80
-    targetPort: 80
-
-# External access via MetalLB (LoadBalancer)
 front:
   realIpFrom:
     - 192.168.10.0/24
+  nodeSelector:
+    node-role.kubernetes.io/worker: "true"
+
   externalService:
     enabled: true
     type: LoadBalancer
     externalTrafficPolicy: Cluster
     ports:
-      smtp: true         # port 25
-      submission: true   # port 587
-      imap: true         # port 143
-      imaps: true        # port 993
-    # Optional: You can manually specify a loadBalancerIP here if you want to fix the IP
-    # loadBalancerIP: 192.168.10.241
-  nodeSelector:
-    node-role.kubernetes.io/worker: "true"
+      smtp: true
+      smtps: true
+      submission: true
+      imap: true
+      imaps: true
+      pop3: false
+      pop3s: false
+      manageSieve: false
 
 dkim:
   enabled: true