In the file include/class.ticket.php at the end of method "static function open($vars, &$errors)"After: $email->send($ticket->getOwner(), $msg, $msg, $attachments, $options);Add://Send notification to collaborator too$res= db_query("SELECT id FROM ost_user WHERE ost_user.org_id = (SELECT org_id FROM ost_user WHERE id=".$ticket->getUserId().") AND id!='".$ticket->getUserId()."'");while($collab=db_fetch_row($res)) { $currentCollab=new TicketOwner(new EndUser(User:($collab)), $this); $email->send($currentCollab, $msg, $msg, $attachments, $options);}Or to have the properly name in the message body (comment the first line)://$email->send($ticket->getOwner(), $msg, $msg, $attachments, $options);//Send notification to collaborator too$res= db_query("SELECT id,name FROM ost_user WHERE ost_user.org_id = (SELECT org_id FROM ost_user WHERE id=".$ticket->getUserId().")");$prevDest="#dest#";while($collab=db_fetch_row($res)) { $currentCollab=new TicketOwner(new EndUser(User:($collab)), $this); $msg=str_replace($prevDest,$collab,$msg); $prevDest=$collab; $email->send($currentCollab, $msg, $msg, $attachments, $options);}Don't forget to replace, in the template, the name %{recipient.name.first} by #dest#Envoy :)