When a ticket is created or a follow-up is added by sending an e-mail with an attached file,
the user does not receives a new notification if the file is rejected.
Today, there is just an indication of rejection in place of the web link in the "new ticket" or "new follow-up" notification. But this information is drowned among others.
It would be more striking if a new notification will inform that the file is not passed.
Customer support service by UserEcho