diff --git a/etc/vmail.conf b/etc/vmail.conf
index 745d9da..e5ad255 100644
--- a/etc/vmail.conf
+++ b/etc/vmail.conf
@@ -1,5 +1,10 @@
 # vmail configs
 
+# any script that includes this conf file will force user to be vmail
+if [ "$USER" != "vmail" ]; then
+  exec su --shell /bin/bash "vmail" "$0" -- "$@"
+fi
+
 # constants
 
 readonly MYSQL_CONNECTION_INFO_FILE=/usr/local/etc/vmail-db-info.conf
@@ -55,4 +60,5 @@ function vmail::yesno() {
     esac
 
   done
+
 }