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animail - [The GNU General Public License, Version 2] - 2004-07-27
Multiserver mail retrieval utility
BFilter - [The GNU General Public License, Version 2 or later] - 2004-03-22
Smart ad-filtering HTTP proxy
Black Hole - [The GNU General Public License, Version 2 or later] - 2004-06-21
Anti-spam application
blq - [PublicDomain] - 2004-02-06
Identifies potential spammers
bogofilter - [The GNU General Public License, Version 2] - 2004-07-15
Spam filter
Confirm - [GPL] - 2004-02-09
Anti-spam system
CRM114 - [The GNU General Public License, Version 2] - 2004-03-23
Regex mutilator and filter
Distributed Checksum Clearinghouse - [an X11-style license] - 2004-06-01
Spam detection and filtering package
DNS Flood Detector - [The GNU General Public License, Version 2 or later] - 2004-04-15
Detects abusive trafic on nameservers
DSPAM - [The GNU General Public License, Version 2 or later] - 2004-07-22
Server-side anti-spam agent
Escrambler - [a simple permissive license] - 2002-07-17
Scrambles HTML code
libbnr - [The GNU General Public License, Version 2 or later] - 2004-07-26
Implementation of the Bayesian Noise Reduction (BNR) algorithm
libspf2 - [LGPL2.1orlater *or* BDS_2Claus] - 2004-07-14
Verifies that a sender's address matches the address that submitted it
libsrs2 - [GPLv2 *or* BSD_2Clause] - 2004-06-17
Library for email envelope send address rewriting
Mailbox Sweeper - [The GNU General Public License, Version 2 or later] - 2004-04-27
Deletes email messages without downloading them
Mailfilter - [The GNU General Public License, Version 2 or later] - 2003-11-26
Gets rid of spam in POP mailboxes.
MailScanner - [The GNU General Public License, Version 2 or later] - 2004-04-01
Virus scanner, vulnerability protector, and spam tagger
MessageWall - [The GNU General Public License, Version 2 or later] - 2002-10-18
SMTP proxy
Microbrew Microsieve - [The GNU General Public License, Version 2] - 2003-05-06
Spam filter for USENET
noattach - [The GNU General Public License, Version 2 or later] - 2003-08-22
Checks filenames against a given pattern file
Notespam - [The GNU General Public License, Version 2] - 2002-06-06
Filter-style spam-marking script
p3scan - [The GNU General Public License, Version 2 or later] - 2004-06-15
Fully transparent proxy server for POP3 clients
Popsneaker - [The GNU General Public License, Version 2 or later] - 2003-04-17
Remotely filters POP3 email accounts
Pydspam - [The GNU General Public License, Version 2 or later] - 2004-04-21
Python wrapper for DSPAM
PyMaViS - [The GNU General Public License, Version 2] - 2004-05-03
Removes email attachments and scans them for viruses
Qmail-Scanner - [The GNU General Public License, Version 2] - 2004-03-16
Content scanner for qmail
Rblcheck - [The GNU General Public License, Version 2 or later] - 2004-02-11
Performs lookups in RBL spam-blocking lists
Renattach - [The GNU General Public License, Version 2 or later] - 2004-04-22
Identifies and acts on potentially dangerous e-mail attachments
Seed Spambots - [The GNU General Public License, Version 2 or later] - 2003-12-09
Generates HTML pages and email addresses to fool spambots
Sendmail Confirmation System - [The GNU General Public License, Version 2 or later] - 2003-10-09
Anti-spam system
Spam-X - [The GNU General Public License, Version 2 or later] - 2003-03-25
Anti-Spam application
Spamcup - [The GNU General Public License, Version 2 or later] - 2003-12-09
Spamcop command-line tool
SpamFilters - [a simple permissive license] - 2004-01-28
Rulesets that expand on sendmail's anti-spam facilities
SpamX - [GPL] - 2003-04-09
Cleans spam from a POP3 mail account
Spastic - [The GNU General Public License, Version 2] - 2004-07-19
Set of Filters for email
Testmail - [GPL] - 2004-06-21
Checks and filters email
TMDA - [The GNU General Public License, Version 2 or later] - 2003-05-08
SPAM reduction system and local mail delivery agent
wl - [a 3-clause BSD-style license] - 2004-06-08
Whitelist/blacklist for email
XT-Mail - [The GNU General Public License, Version 2 or later] - 2003-04-08
Scans the contents of email messages using the Exim local_scan feature


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