Open Source C Email Clients

Claws Mail is a GTK+ based, lightweight, and fast e-mail client and newsreader. Supports POP3, APOP, IMAP, SMTP, SMTP AUTH, NNTP, LDAP, multiple accounts, spell-checking, addressbook, SSL, GPG, filtering, i18n, & more. It is further extended by plugins.

RFC 2425 defines a MIME Content-Type for Directory Information. This library contains necessary methods to parse information blocks arranged in such a manner.

The venerable MH message handling system: a command-line based mail user agent for UNIX/Linux developed at the RAND Corporation and the University of California, Irvine.

** THIS PROJECT MOVED TO GITHUB ** libEtPan ! is a mail purpose library. It will be used for low-level mail handling : network protocols (IMAP/NNTP/POP3/SMTP over TCP/IP and SSL/TCP/IP, already implemented), local storage (mbox/MH/maildir), message /

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The Virtual Access Foundation's Virtual Access Open Source (VAOS) is a well-established win32 mail news and collaborative conferencing tool. Modified BSD license. Please go to our homepage http://www.virtual-access.org for more information and support.

YAM (short for Yet Another Mailer) is a commonly used MIME-compliant Internet mailer written for AmigaOS computers. It supports POP3, SMTP, TLSv1/SSLv3, multiple users, PGP, hierarchical folders, filters, a configurable GUI, an ARexx interface and more...

Elmo is a feature-rich console mail client for UN*X power users. It integrates functionality commonly realised by separate pieces of software in other mailers.

The evolution-kolab plug-in extends GNOME's PIM suite Evolution and EDS (Evolution-Data-Server) to become a full-featured Kolab 2 groupware client. Collaborate with other Kolab 2 users on emails, contacts, appointments, notes and tasks.

win32 native port of the Mutt mail client

Pluto is an email and newsgroup reader for the RISC OS operating system (see https://www.riscosopen.org/), developed by Jonathan Duddington from 1997 to 2004. It stores emails and news articles in Boxes, and they can be Listed, Viewed, Written, Spell checked, Replied to, Searched and even Spoken out loud! After Pluto was released under GPLv3 here on SourceForge in 2013, it has had many improvements. Pluto runs on any version of RISC OS later than v3.10, including RISC OS 5 computers such as the Raspberry Pi, BeagleBoard, IGEPv5, Iyonix, PandaBoard, Wandboard, PineA64 and Titanium as well as the older Risc PC and Archimedes series. From v3.16 onwards the RISC OS version of eSpeak is not included in the Pluto download, but separately in the Files espeak directory. The espeak project itself is on https://espeak.sourceforge.net/ but seems currently dormant. For full details of all updates since v3.06b, please see the Pluto Web Site on http://www.avisoft.f9.co.uk/pluto/

Webmail client for call center agents. Designed to efficiently manage and report on a large number of emails to a small number of email addresses. Specifically designed with webforms in mind where one email address may receive over 1000 emails per day.

After one year without development of the XForms based Unix email client XFMail, the coding has started again. The GTK is supposed to be the toolkit of choice and so we will take XFMail's core, restructure it, and port it to the Gimp ToolKit.

AUC for Education is an GPLed intranet system designed for use in a K-12 setting that provides a web-based environment for students and teachers to interact via "Interactive Classrooms" and other innovative features.

CSCMail is an X/Gtk based MUA. It supports the POP3 protocal and can also read mailspool files/directories. It supports multiple accounts, filters, GPG, MIME, Spellchecking, HTML Mail (view only) and a host of other features.

This program is a minimal SMTP client that takes an email message body and passes it on to a SMTP server (default is the MTA on the local host). Since it is completely self-supporting, it is especially suitable for use in restricted environments.

Edbrowse is a comprehensive editor, browser, and email client that provides access to the net through a command line interface, appropriate for speech or braille. It also supports scripting, to interact with the net in the background, or in batch mode.

A PHP Webmail, utilizing persistant IMAP connections and XHTML 1.1. Since the name is rather long, the preferred nickname is "d-mail".

Draconis is a suite with several Internet Programs for the ATARI platform. It contains clients and drivers for a sucessful internet access.

elmutt - mutt with elm features

Errors Hippo is a BBS offline-reader with support for the Hippo packet format. It features a messagebase and a (hopefully) easy-to-use interface.

Moved to GitHub: https://github.com/sswv/extmailhf

Geedot aims to be a lightweight, fully (and only) HTML 4.01 and CSS compliant and functional web browser for X. It uses the gdtoolkit widget set which is very fast and lightweight - yet also infinitely and easily expandable.