42 of the Best Free Linux Email Software
- A useful compilation of Linux email organized into broad subject areas. Each entry has a summary, license information, developer list, system requirements, and a link to the homepage. Last updated 2009-08-09.
AMaViS - A Mail Virus Scanner
- A script that interfaces a mail transport agent (MTA) with virus scanners. Latest stable release is 0.3.12, 2003-03-06.
Add-ons Mirror - the "New" Extensions Site
- Extensions and themes for Firefox, Thunderbird, SeaMonkey, Flock, Nvu, and much more. Formerly called The Extensions Mirror @www.extensionsmirror.nl.
Archivemail
- A tool for archiving and compressing old email in mailboxes. It moves messages older than the specified number of days to a separate mbox format mailbox that is compressed with gzip. It can also be used as a backup tool.
BasiliX - Your Mail Gateway
- A webmail application based on PHP and IMAP, and powered with the MySQL database server. Site available in English and Turkish.
Bill's Linux Qmail Toaster
- This HOWTO provides instructions on how to build a Qmail "toaster" and should work for the popular Linux distributions. (2007) Also available in Romanian and Spanish.
Bogofilter
- A mail filter that classifies mail as spam or ham (non-spam) by a statistical analysis of the message's header and content (body).
Bongo Project
- Easy-to-use mail and calendaring software. The goal of this project is to make sharing, organisation, and communication simpler, quicker, and more useful.
Claws Email - the Email Client that Bites!
- A user-friendly, lightweight email client based on GTK+. Excellent multilingual support. Latest release is 3.7.3, 2009-10-09. Formerly known as Sylpheed-Claws
Courier Mail Server
- An IMAP and POP server; also a MTA server, a webmail application and a web administration interface. Latest version is 0.60.0, 2008-07-13. Also available in Japanese and Turkish.
Dovecot
- An open source IMAP and POP3 server for Linux/UNIX-like systems. Latest release is 1.1.3, 2008-09-02.
Evolution
- An integrated mail, addressbook, and calendaring functionality for the GNOME desktop. Latest release is 2.28.2, 2009-12-13.
Exmh
- X user interface to MH mail. Latest release is 2.7.2, 2004-01-07.
Fetchmail Home Page
- A full-featured and robust remote mail retrieval and forwarding utility. Latest release is 6.3.8, 2007-04-06.
FreePOPs
- An extensible program that downloads mail from webmail portals through the POP3 protocol. It can also be used as an RSS/Atom aggregator. Also available in Italian. Latest release is 0.2.7, 2008-06-11.
GNUMail.app
- A fast mail application for GNUstep and Mac OS X. Latest release is 1.2.Opre 3, 2007-02-05.
Hashcash
- A denial-of-service counter measure tool; primarily a spam management tool using a hascash stamp, but also can be used for protecting wikis from defacement.
IlohaMail
- A full-featured, multilingual webmail program. Latest stable release is 0.9, 2005-04-15.
KMail - KDE UserBase
- KMail is the email component of Kontact, the integrated personal information manager from KDE. Multilingual support is excellent with 12+ langugages available.
KShowMail - the Human Spam Filter
- A POP3 mail checker for the KDE with these features: show number, size and more information about the mail messages on POP3 servers in a list view; show the mail headers or complete mail message, delete unwanted mail from the server by configurable filters. Latest stable release is 3.2.9.1, 2007-08-05.
M2F
- Add-on software to the phpBB forum system which combines the functionality of a mailing list system and a phpBB forum in order to add bi-directional communication. Latest release is 1.2.6, 2007-03-09.
Mailgraph Homepage
- A simple mail statistics RRDtool front-end for Postfix that produces daily, weekly, monthly and yearly graphs of received/sent and bounced/rejected mail.
Msmtp: An Msmtp Client
- A SMTP client that can be used as a SMTP plugin for Mutt and other MUAs (mail user agents). Also available in German. Latest stable release is 1.4.16, 2008-07-27.
MultiMail Blue Wave/QWK Reader
- An offline mail packet reader for Unix and other systems. Latest stable release is 0.49, 2007-07-19.
Muttprint
- An application for printing out email using LaTeX.
NeoMail
- A web-based email client with multi-language support. Latest stable release is 1.29, 2006-02-10.
Novell Evolution 2
- An email client plus task lists, calendaring, and contact management functions.
Nuclear Elephant: DSPAM
- An anti-spam engine designed for system-wide filtering and third party integration; uses Bayesian statistical analysis to improve spam filtering success rates.
Open WebMail
- Open WebMail is designed to manage large mail folder files in a memory-efficient way. It also provides a range of features to help users migrate smoothly from Microsoft Outlook to Open WebMail. Originally based on Neomail version 1.14 from Ernie Miller. Latest release is 2.52, 2008-01-24.
POPFile Home Page
- Automatic mail classification tool. An automatic mail classification tool. Latest stable release is 1.0.1, 2008-05-26. Available in English, Norwegian, German, Portuguese (Brazilian), French, Spanish and Danish.
Paul Graham Home Page - Anti-Spam
- Numerous articles on spam by Paul Graham, plus links to spam resources and the annual Spam Conference.
Pine Information Center
- Pine (a Program for Internet News & Email) is one of the original email clients; developed by University of Washington. A great command-line email client with outstanding documentation.
Postfix Wiki
- A wealth of online resources about Postfix can be found here including the source code and excellent documentation.
Pyzor
- Python-based spam detector and blocker. Latest release is 0.5.0, 2009-05-07.
Qmail
- This is the official website maintained by the Qmail developer.
Qmail-Scanner - A Content Scanner for Qmail
- An email content scanner that enables a Qmail email server to scan all email it receives for certain characteristics (normally viruses), and react accordingly. Currently supports English, Italian, Afrikaans, Polish, Swedish, Czech, German, Spanish, Turkish, Lithuanian, French, Portuguese, Dutch, and Chinese messages. Latest stable release is 2.05, 2008-07-09.
QmailAdmin
- A web interface for managing a qmail system with virtual domains.
Qmailrocks
- A comprehensive Qmail installation resource.
Roundcube - Free Webmail for the Masses
- A browser-based, multilingual (67 languages) IMAP client with an application-like user interface which provides full functionality such as MIME support, contacts, and spell checking. Latest stable release is 0.4, 2010-08-07.
SYMPA - mailing list manager
- An open source mailing list software, which is highly customizable, easy to administer, and translated into 20+ languages. Latest stable release is 6.0, 2009-10-01
Sendmail Home
- A mail transfer agent (MTA) that is a well-known project of the open source, free software and Linux/UNIX communities. Distributed both as free software and proprietary software.
SpamAssassin
- One of the more well-known, open source spam filtering programs for Linux and other operating systems. Latest stable release is 3.3.0, 2010-01-27
SpamAssassin Wiki
- An information and wiki for SpamAssasin, an open source spam filtering programs for Linux and other operating systems.
SquirrelMail - Webmail for Nuts!
- A standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers. Available in many languages.
Sylpheed
- A lightweight and user-friendly email client; available in English and Japanese. Latest stable release is 2.7.1, 2009-08-13.
The IMAP Connection
- A resource site for IMAP (Internet Message Access Protocol).
The MIMEDefang HOWTO
- A comprehensive guide to installing a Linux (or BSD derivative, or UNIX) system-based mail server with sendmail, MIMEDefang, spam filtering software, and anti-virus software. (2008)
The Mutt E-Mail Client
- A small and powerful text-based mail client. Translated into 20 languages. Latest stable release is 1.4.2, 2007-06-09. Latest development release is 1.5.2.0, 2009-06-14.
The Postfix Home Page
- Modern and secure mail server software; a replacement for Sendmail. Check the documentation section -- it is excellent.
The SeaMonkey Project
- An all-in-one Internet apppliance suite which includes a Web browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing. It has excellent localization support. Latest stable release is 2.0, 2009-10-27. This is the successor to the Mozilla Application Suite.
The nmh - New Message Handler
- An email handling system that consists of a collection of simple, single-purpose programs to send, receive, save, retrieve, and manipulate email messages. Latest stable release is 1.2, 2005-12-20. Latest development release is 1.3, 2008-04-27.
Thunderbird Mail Project Page
- The Mozilla Thunderbird Mail Project is a a cross-platform standalone email client. A redesign of the original Mozilla email client. Latest stable release is 3.0, 2009-12-08.
VMailMgr
- Virtual MAIL ManaGeR is a package of programs designed to manage multiple domains of mail addresses and mailboxes on a single host; works with qmail for email delivery and control.
Vipul's Razor
- A distributed, collaborative, spam detection and filtering network. Latest stable release is 2.85, 2008-07-21.
Welcome to Dada Mail - Mailing List Manager
- A Web-based email list management system, which runs on any hosting account that can execute custom CGI scripts. Latest stable release is 3.0.2, 2008-12-29.
Welcome to SpamProbe - A Fast Bayesian Spam Filter
- A fast, intelligent, automatic spam detector using Paul Graham-style Bayesian analysis of word counts in spam and non-spam emails. Latest stable release is 1.4d, 2007-01-06.
XMail Home Page
- An Internet and intranet mail server with features such as an SMTP server, POP3 server, finger server, multiple domains, spam protection, and SMTP authentication.