diff --git a/infrastructure/platform/mail/mailu-helm/prod/values.yaml b/infrastructure/platform/mail/mailu-helm/prod/values.yaml
index 1f852ce1..92d4306f 100644
--- a/infrastructure/platform/mail/mailu-helm/prod/values.yaml
+++ b/infrastructure/platform/mail/mailu-helm/prod/values.yaml
@@ -48,8 +48,8 @@ externalRelay:
 # Environment-specific configurations
 persistence:
   enabled: true
-  # Production: use microk8s-hostpath or longhorn
-  storageClass: "longhorn"  # Assuming Longhorn is available in production
+  # Production: use microk8s-hostpath (default storage class)
+  storageClass: ""  # Use cluster default storage class
   size: "20Gi"  # Larger storage for production email volume
 
 # Resource allocations for production