diff --git a/manifests/mailu/values.yaml b/manifests/mailu/values.yaml
index af36669..8c69cf3 100644
--- a/manifests/mailu/values.yaml
+++ b/manifests/mailu/values.yaml
@@ -18,6 +18,8 @@ ingress:
     - hosts:
         - mail.dvirlabs.com
       secretName: mailu-certificates
+  proxyProtocol:
+    smtp: true
 
 persistence:
   enabled: true