Gfi
Gfi mailessentials is an anti spam filter for exchange and lotus notes, which includes anti-phishing and exchange disclaimer features.
http://www.gfi.com/anti-spam-software-exchange
Download
You won't get pricked by this helpful e-mail spam filter, but training it to recognize spam takes a little patience.
http://download.cnet.com/Cactus-Spam-Filter/3000-2382_4-10326600.html
Tipstegenspam
Tipstegenspam
http://www.tipstegenspam.nl/gratis-spamfilters.html
Spamihilator
Website of the free anti-spam-filter spamihilator / website des kostenlosen anti-spam-filters spamihilator
http://www.spamihilator.com
Mailwasher
Mailwasher
http://www.mailwasher.net
Spambayes
Spambayes
http://spambayes.sourceforge.net/
K9
K9
http://keir.net/k9.html
Spamfighter
Spamfighter is a global provider of state-of-the-art computer and server utility products to millions of users from 228 countries/areas around the globe.
http://www.spamfighter.com
Spaminhilator
Spaminhilator
http://www.spaminhilator.com/