Updated: 12/29/2005
SpamFilters
!!spam Forward spam to
mailto:spamrecycle@chooseyourmail.com. Forward all your spam to this address. Also to: For laws against span, junk faxes, telemarketing, and prerecorded telemarketing calls (which are illegal in the US) see junkbusters.com. Spamlaws.com also has a good page on world wide laws against spam. [Report a dead link]
www.spamrecycle.com

Corporate searches
Search for info on corporations: address, officers, etc. By US state. [Report a dead link]

K9
Email filtering program for POP3 accounts. [Report a dead link]
http://keir.net/k9.html

MailtrakX
Mail reader and spam filter. [Report a dead link]
http://softbytelabs.com/Frames.html

Mailtraq4free , 2,574kb
Mailtraq is a comprehensive e-mail, news proxy and webmail server (supporting SMTP/POP3/IMAP/LDAP/NNTP/FTP). It provides full scale mail routing and management, mailing lists, automated dialup handling, user accounting, content barring, anti-relaying, anti-spam and anti-virus facilities. Mailtraq is extensible through a scripting language and can collect and route mail from a single POP3 mailbox for multiple users. Mailtraq also supports ETRN and ODMR for mail collection. The Mailing List CRM feature can share incoming mail amongst multiple users (for example, sales@yourcompany.com) and you can host large discussion forums using e-mail based subscription handling. Local Directory services (provided through LDAP) allow local users to look up e-mail addresses hosted in Mailtraq. This is the free personal edition for up to 4 users. [Report a dead link]
http://www.webattack.com/Freeware/server/fwmailserver.shtml

Mailwasher
Bounce back spam so spammers will remove you from their active email list; use a blacklist to prevent spam;, use a friends list to let email through; supports filtering, MSN and Hotmail; unlimited email accounts; easy to use. You decide what to do with each email: download it, delete it, or bounce back to sender. [Report a dead link]
www.mailwasher.net

PC Help Network Tracer
Helps find out who originated spam. [Report a dead link]
http://www.pc-help.org/trace.htm

POP3 Cleaner , 175kb
If you need to clean your mail server from unwanted messages, virus-containing messages, bug-generating mail or messages with large filesize, then POP3 Cleaner is for you. POP3 Cleaner is useful : POP3 Cleaner lets you preview and delete your mail. Every message is shown with its filesize, sender and subject. [Report a dead link]
http://www.nairolf.net/mbn-utilities.asp

Popfile , Editor's Pick
Bayesian filtering for email. Gets smarter the more you use it. [Report a dead link]
http://popfile.sourceforge.net

POPTray
Tells you how many messages are in each of your POP accounts. Also has rules to flag messages as spam. Rules can have different actions like play sound, delete from server, ignore, notify. [Report a dead link]
http://www.poptray.org/

Sam Spade
Network query tool for tracking down spammers. [Report a dead link]
http://www.samspade.org/ssw/

SAProxy
Uses SpamAssassin algorithms to filter spam before it is downloaded from your POP account. Also at Saproxy.com. [Report a dead link]
http://sourceforge.net/cvs/?group_id=25457

Spam Assassin
Uses advanced heuristics and methods to identify spam. It supports blacklists, Vipul's razor, and text and header analysis. [Report a dead link]
http://spamassassin.org

Spam CSI
Finds spammer URLs in email, tracks down an abuse address and sends them an email. [Report a dead link]
http://www.promailix.com/

Spam filter
Free program that logs onto your POP account and deletes emails with certain keywords. [Report a dead link]
http://www.ailwyn.schoolzone.co.uk/web/spam%20filter.asp

Spam Hater
Track and send junkmail to domain postmaster, and more tools. Pics at http://www.keyscreen.com/KeyScreen(s)6/spamhater.htm. [Report a dead link]
http://download.com.com/3000-2158-896903.html?legacy=cnet

Spambayes
Looks like it uses Bayesian filtering to get rid of spam. [Report a dead link]
http://spambayes.sourceforge.net/

Spamihilator
Uses Bayesian filtering and keywords to filter out spam email. With usage graphs. Also uses whitelist. [Report a dead link]
http://www.spamihilator.com/index2.php?lang=en

Spampal , Editor's Pick
SpamPal is an anti-spam tool that runs as a local POP server, receiving and filtering your email before it arrives in your inbox. Unlike many other anti-spam solutions, SpamPal does not delete any messages, but rather adds a ***SPAM**** mark to the email subject, which you can then use to configure your email program and have it delete or move them to a different folder. In addition, you can maintain a white-list of senders that will always be accepted, as well as a blacklist of senders that will always be rejected (tagged). The program offers a handy auto-whitelist which can automatically add frequent contacts to the list and exclude them from ever being tagged as spam. By default, SpamPal relies on DNSBL lists alone, which identifies spam based on an entry for the sender in one of the public DNSBL lists. However, you can optionally activated plug-ins that will also act on "bad words" found in the message body. Overall SpamPal provides a nice solution to combat spam and offers many useful features. E-mail filtering is very slow, and due to the lack of advanced word filters, it catches only a portion of the spam, while better results require expert tweaking and plug-ins. Also has a Bayesian filter plugin. Also at www.spampal.org. [Report a dead link]
http://www.spampal.us/

Tagged Msg Delivery Agent
Uses a blacklist/whitelist approach. All users are blacklisted at first. When a blacklisted mail is received the program automatically sends a reply asking the person to reply back to confirm they are a real person, not a spambot. When the reply is received the original message is delivered to the user and the person is added to the whitelist. Unixes only. [Report a dead link]
http://tmda.net/

Xterminator
Delete spam from your POP mailbox before downloading it. [Report a dead link]
http://www.artplus.hr/adapps/eng/xterminator.htm