diff --git a/mail-server.nix b/mail-server.nix
index 97cd7a2..666a2c3 100644
--- a/mail-server.nix
+++ b/mail-server.nix
@@ -36,4 +36,7 @@ in
   users.groups = {
     vmail = { gid = vmail_id_start; };
   };
+  
+  # define all users
+  users.extraUsers = vmail_user ++ mail_user;
 }