SpamSquash   
http://www.alwayslearn.com

SpamSquash is a spam filter for email clients that connect to pop3 email servers. It uses two filtering methods: a Bayesian filter and a DNS block list. The Bayesian is trained by you to get emails you consider to be spam. The DNSBL uses spam repositories to determine what is spam. The filter is over 99% accurate. It also includes a white list and a black list. You can use one filter or both filters together. You can use it with Outlook, Outlook Express, Pegasus Mail, etc. You can download a free trial version at www.alwayslearn.com.

Spam Trapper for Outlook   
http://www.brigsoft.com

(*) Spam Trapper is a multilevel spam filter for Microsoft Outlook version 2000 and later. It is a plug-in component with clear convenient interface. (*) The first level checks your address book and validates all letters from your clients. So letters from your friends and colleagues are never processed as spam. (*) Other levels check message language, subject, body, http links and other mail feature. The filter has Special Statistical levels that are based on unique algorithms. The last level is a Bayes Filter. Such program architecture allows catching spam before the Bayes Filter is trained enough and minimizes the filter training period. Any level can be switched off. (*) There are non-spam related functions too. For Example, you can use Outlook as an alarm clock. But if you exit it by mistake alarm will not work. SpamTrap allows prevent Outlook from exiting. Instead it hides Outlook and sets an Outlook icon into the systray. So Outlook is always at hand and no alarm messages will be lost. Additional option makes Outlook to play Mp3 files and other media files. (*) Spam Trapper does not work with Outlook Express.

No Spam Today! for Workstations   
http://www.byteplant.com

No Spam Today! for Workstations was created for users of Outlook, Outlook Express and all other POP3 email clients to protect mailboxes against spam, malicious attachments and viruses. Acting between your mail client and your mail server No Spam Today! for Workstations scans all incoming emails and marks spam emails so you can sort out the unwanted emails. With NoSpamToday!'s easy-to-use installation wizard, the filter can be activated within minutes. When installing No Spam Today! you will get: 1. A complete one stop setup routine that installs one of the world's most advanced and thorough email spam filters on your PC in a matter of minutes. 2. A reliable POP3 proxy software that makes it easy to use No Spam Today! for Workstations with any POP3 mail client. 3. A built-in attachment blocker. 4. Built-in support for virus checkers. 5. Automatic spam protection for all your Outlook POP3 accounts. 6. An easy to use Configuration Wizard to configure all the important settings of No Spam Today! and the SpamAssassin engine. 7. Free support

Cactus Spam Filter   
http://www.codeode.com

Cactus Spam Filter is a free easy-to-use spam blocker. It protects your inbox by learning to detect spam as it's being used. After a short while it has adapted to your personal mailbox and blocks out most of the junk e-mail. Since the filter becomes personal, spammers will not be able to fool it. Installation is very simple. No setup is required in your e-mail client; this spam stopper integrates seamlessly with all e-mail clients that use POP3. It has been successfully tested with Microsoft Outlook, Microsoft Outlook Express, Netscape, Opera, Mozilla, Mozilla Thunderbird, Eudora, Pegasus Mail, IncrediMail, Foxmail, POP Peeper, Command Line POP Client and Phoenix Mail. This anti-spam program learns to detect spam as it's being used, and believe me, Cactus Spam Filter is a fast learner. After a few e-mails it will start to make its own decisions to relieve you from the spam burden. Even though this is a brutal, merciless spam killer, no e-mails will get lost unless you delete them. One of the unique features of Cactus Spam Filter is the ease of use. After you have downloaded and installed it no more settings are required! No account setup, no POP proxies, nothing! Just start your favorite e-mail program and Cactus Spam Filter will instantly protect it!

SpamSource   
http://www.daesoft.com

SpamSource helps collect information from messages for use in reporting unsolicited junk email. Quickly and easily retreives the email message header and body information for use in Spam Reporting services, notifying email administrators.