On Sun, Mar 16, 2008 at 12:08 AM, Sobari Tanuwijaya <tanuwijaya at gmail.com> wrote: > I think I can install qmail for the MTA, but I don't know how to prevent > several person just can send/receive email from the same domain, while > the other can send/receive email to any address he wants to. > Anybody kind enough to share how to do that? It's easy to do it with Postfix: http://www.postfix.org/RESTRICTION_CLASS_README.html#external HTH, Filipe