
antispam.codeplex.com
ARSoft.MultiRulePolicyDaemon Antispam daemon - HomeThis project provides a antispam daemon to detect and greylist or reject spam in your MTA by analyzing the smtp envelope using different rules. At the moment Postfix and Exim are supported. The daemon runs on Windows (using .Net 3.5) as well as on Linux (using Mono 2)
http://antispam.codeplex.com/