Annoying spammers
Hitting back at spammers with OpenBSD and spamd This was originally posted to the OpenBSD journal. OpenBSD's spamd - A lightweight spam-deferral daemon. Spamd works directly with SMTP connections, and supports features such as greylisting. It minimises false positives compared to a system that does full-body analysis. It is not a replacement for spam-filters, but an elegant method of segregating the spammers. This HOWTO is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Copyright (C) 2007 Techmeister The lowdown I hate spammers; I mean I really hate their kind. It stems from a crevasse deep inside me since Sabir Bhatia sold Hotmail. There are plenty of excellent methods for spam-control, none of them fool-proof, and almost all the good ones need you to 'train' the filters to differentiate between what's spam and what's not. I am not g...