This is an excelent guide step by step to build a mail gateway with antivirus and antispam funcionalities. I've used it to build a mail gateway to help to us domino's server to process email. I've build it with Mandriva 2006 and there's not problem, all works fine. As I didn't have Exchange, I had to look for information to build the file of valid recipients manually.

Omar Rojas García

omarrojasg (at) gmail.com