Lightweight Open Source webmail written in PHP and JavaScript
Fast and easy-to-use webmail front-end for your existing mail server.
NaSMail is a standards-based webmail package written in PHP
Simple, modern & fast web-based email client
Free and open source webmail software
Business webmail modular application with mobile client
Webmail made easy!
Roundcube simple captcha plugin
Webmail open-source in php base on Squiremail