Flexible SMTP daemon for network-level spam detection

spam-catcher using a collaborative filtering network

Rename attachments on the fly

Extract attachments out of MIME encoded emails

MTA->UUCP remote mail handler

text-based (vCard) contact management software

Rapid spam filtering system

receive RSS feeds by email

Tools for compiling SpamAssassin rules into C

SpamAssassin filter for Exim

SMTP defence software against spam

encrypting mailing list manager with remailing-capabilities

command line tool to configure schleuder mailing lists

a mail filter written in Scheme

utility for selecting X-Face on emacsen

library to provide MIME feature for emacsen

lightweight, command line SMTP email client

powerful, efficient, and scalable Mail Transport Agent (metapackage)

powerful, efficient, and scalable Mail Transport Agent (arch independent files)

powerful, efficient, and scalable Mail Transport Agent

powerful, efficient, and scalable Mail Transport Agent (config macros)

Mail Delivery Agent wrapper

Automatic, semi-random ".signature" rotator/generator

Sendmail log analyser

Versatile and Intelligent List Processor

feature-rich BSD mail(1)

Scalable groupware server

Scalable groupware server - ActiveSync module

Scalable groupware server - common files

POP3 server supporting Maildir, PAM, vhosting

simple mail sorter

Perl-based spam filter using text analysis

Heuristic Email Address Tracker Utility for Spamassassin

milter for filtering mail through spamassassin

Client for SpamAssassin spam filtering daemon

Server for SpamAssassin spam filtering daemon

spamassassin based SMTP/LMTP proxy daemon

Bayesian spam filter

query SPF (Sender Policy Framework) to validate mail senders

SPF tools (spfquery, spfd) based on the Mail::SPF Perl module

sender policy framework (SPF) tools for Python

Postfix Greylisting Policy Server

command-line Sender Rewriting Scheme client

extremely simple MTA to get mail off the system to a mail hub

thread-centric mailer with tagging and fast search

SMTP command-line test tool

Light weight e-mail client with GTK+

Loadable modules for extending Sylpheed features

Full-text search program for Sylpheed or MH folders

Modern mailing list manager