diff --git a/manifests/mailu/values.yaml b/manifests/mailu/values.yaml
index 96d547f..4237ba5 100644
--- a/manifests/mailu/values.yaml
+++ b/manifests/mailu/values.yaml
@@ -38,7 +38,8 @@ service:
     port: 80
     targetPort: 80
   smtp:
-    type: ClusterIP
+    type: NodePort
+    port: 25
 
 dkim:
   enabled: true