Spamihilator - Anti-Spam-Filter
Filter that works with any POP3 client. Uses Bayesian filtering.
Mailwasher Anti Spam Software: The Reliable Free Spam Blocker
Reliable anti spam and spam blocker software, protect your computer from It beats the hell out of ISP spam filters which tend to trash legitimate mails
SMTP Server Spam Filter - SPAMfighter
SMTP Server Spam Filter. SPAMfighter SMTP Anti Spam Server è la soluzione anti-spam facile da usare per Server SMTP. Protegge tutti i tuoi utenti dalla
Symantec Corporation
Symantec Brightmail Anti-Spam™ Version 6.0 is a high performance software solution that blocks spam at the Internet gateway.
Cloudmark - Anti Spam and Spam Blocker Solutions
Cloudmark delivers the industry's only secure messaging solution that combines sophisticated technology with the feedback of millions of trusted users from

SMTP Server Spam Filter - SPAMfighter
SMTP Server Spam Filter. SPAMfighter SMTP Anti Spam Server è la soluzione anti-spam facile da usare per Server SMTP. Protegge tutti i tuoi utenti dalla
Symantec Corporation
Symantec Brightmail Anti-Spam™ Version 6.0 is a high performance software solution that blocks spam at the Internet gateway.
Cloudmark - Anti Spam and Spam Blocker Solutions
Cloudmark delivers the industry's only secure messaging solution that combines sophisticated technology with the feedback of millions of trusted users from
SpamBayes: Bayesian anti-spam classifier written in Python.
The SpamBayes project is working on developing a statistical (commonly, although a little inaccurately, referred to as Bayesian) anti-spam filter,
Spam Filter - SpamWeed
Spam Filter that stops all email spam, virus and phising scam. End the curse of junk email with SpamWeed Anti Spam Filter for Outlook or Outlook Express
Anti-spam for Exchange Server 2003, Exchange 2000, Exchange 5.5
Policy Patrol Spam Filter: anti-spam tool for Exchange Server 2003, Exchange 2000, Exchange 5.5 and Lotus Domino.
ChoiceMail - Anti Spam Filter Software and Email Firewall. Stop
A good spam filter software can differentiate between legitimate email and spam email. Try our free spam blocker for personal use.
McAfee SpamKiller - AntiSpam Spam Filter per MS Exchange e Lotus
McAfee SpamKiller per Mail Server offre una protezione e prestazioni di filtraggio antispamming ineguagliabili per i mail server Microsoft Exchange e Lotus