see http://www.howtoforge.com/forums/showthread.php?p=299049

mrtnzlml

2013-07-26 4c12c10c58529cd80a34e820caee06ef8754a7aa

 interface/web/admin/lib/lang/en_server_config.lng

@@ -30,6 +30,8 @@
$wb["module_txt"] = 'Module';
$wb["maildir_path_txt"] = 'Maildir Path';
$wb["homedir_path_txt"] = 'Homedir Path';
$wb["dkim_path_txt"] = 'DKIM Path';
$wb["dkim_path_error"] = 'DKIM Path not found or not writeable.';
$wb["mailuser_uid_txt"] = 'Mailuser UID';
$wb["mailuser_gid_txt"] = 'Mailuser GID';
$wb["mailuser_name_txt"] = 'Mailuser Name';