Anti-Spam SMTP Proxy Server implements multiple spam filters
The classic email sending library for PHP
Take back control of your email with this mail server in a box
Catches mail and serves it through a dream
Local, web-based mail server application. Slurp mails into oblivion!
Lightweight Open Source webmail written in PHP and JavaScript
SMTP email proxy and relay server
Powerful Open Source Email Marketing app with analytics & segmentation
Fast Bayesian spam filter along lines suggested by Paul Graham
Booking/reservation of meeting rooms/equipment with e-mail invitations
Web and API based SMTP testing
Zentyal is a Linux Small Business Server
Simple, modern & fast web-based email client
Wrappers around msmtp for use as queueing MTA with extra features
CheckeredFlag is a super simple mail server.
Email client based on the Eclipse RCP platform.
Email Address Client Search