Exchange/SMTP spam filtering

Effective Spam Filter - free download, install in minutes and block over 98,5% spam. This AntiSpam (spam blocker) includes two AntiVirus solutions ...

Spam Firewall is a plugin for Movable Type that can help reduce this load. The goal of Spam Firewall is to block 80% of spam attempts before they reach MT's ...

SecurityGateway email spam firewall for Exchange/SMTP offers powerful spam filtering, simple administration, and accurate results.