Try smtp with metallb

manifests/mailu/values.yaml

@@ -43,21 +43,24 @@ service:
 front:
   realIpFrom:
     - 192.168.10.0/24
+
   externalService:
     enabled: true
     type: LoadBalancer
-    externalTrafficPolicy: Cluster
+    externalTrafficPolicy: Local
+    loadBalancerIP: 192.168.10.241
     ports:
       smtp: true
-      smtps: true
+      smtps: false
-      submission: true
+      submission: false
-      imap: true
+      imap: false
-      imaps: true
+      imaps: false
       pop3: false
       pop3s: false
       manageSieve: false
+
   nodeSelector:
-    kubernetes.io/hostname: k3s-worker-3
+    node-role.kubernetes.io/worker: ""
 
 dkim:
   enabled: true