* Dennis Carr <dennistheti...@chez-vrolet.net>: > One thing I've been looking at doing is basically checking headers, and > if the From: header is null, then reject it immediately.
The From: header is never null, since it has From: MAILER-DAEMON in it > Other approach is to eliminate my 2ary MX from DNS - most of my spam > comes from that. I don't really want to do that, though, because the > idea of a 2ary MX is for a fallback. > > Thoughts? Apply constinstent rules and recipient verifisation on ALL your MX hosts. -- Ralf Hildebrandt Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.computerbeschimpfung.de One of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C Programs.
