URLs listed in this category:
Mailwasher
A powerful spam filter /spam blocker software, to effectively stop email spam. It's free to use.
http://www.mailwasher.net/
Fight Spam on the Internet!
Help Stamp Out Spam! Anti-junk mail filters, IP blocking, blacklists, other boycott tools to keep the net useful for everyone.
http://spam.abuse.net/
SpamCop.net
Automatically file spam reports with the network administrators who can stop unsolicited email at the source. Subscribe, and filter your email before it reaches your inbox.
http://www.spamcop.net/
0Spam.com
0Spam.com is a free anti spam service for POP, Yahoo, Hotmail, GMail, and IMAP accounts. Compatible with all operating systems, browsers and supports multiple languages. Stops junk mail before it gets to your inbox.
http://www.0spam.com/
MailShield by Lyris
Opt-in email software and email list hosting, for use in email marketing, email newsletters, email publishing, and anti-spam and anti-relay protection.
http://www.lyris.com/products/mailshield/
SpamAssassin
A mail filter, written in Perl, to identify spam using a wide range of heuristic tests on mail headers and body text. Free software.
http://spamassassin.apache.org/
Comodo Antispam
Secure your mailbox with Free Comodo Antispam Download 2005 Desktop Edition for spam free emails.
http://www.comodoantispam.com/
Sophos
Sophos's software and appliances protect business networks against viruses, spyware, adware, Trojans, spam, and unwanted applications
http://www.sophos.com/