Hi, actualy all warning emails generated by ISPConfig are in the language defined in the file config.inc.php, es. (if(file_exists($conf['rootpath'].'/conf-custom/mail/' . $template . '_'.$conf['language'].'.txt'))) it would be possible to take the language configured for the customer instead ?

It would be nice if it was also possbile, to set as the sender of the notification the reseller connected to the customer

Best regards