Damien Robinet: > For example, if a user adds the domain "mma.fr" in the mail system, it > will receive all emails from users who are sending to MMA.FR. > The problem is that MMA.FR does not point to the mail server and all > messages are "stolen" by the user with a catchall...
Postfix works as designed. The error is that you allow users to configure arbitrary domains into Postfix. Wietse