Lightweight Open Source webmail written in PHP and JavaScript
SaltOS, ERP, CRM, Business Management Suite, Josep Sanz Campderrós
NaSMail is a standards-based webmail package written in PHP
Simple, modern & fast web-based email client
Invoices & Auto Reports by Email php+mysql
Free and open source webmail software
cab
Business webmail modular application with mobile client
Webmail made easy!
Roundcube simple captcha plugin
Webmail open-source in php base on Squiremail
BNM helps you design and send massive emails in HTML format
MOX Bulk Email Sender is free and powerful bulk email sender script
Roundcube plugin that check size of INBOX mailbox and alert user
Round Cube plugin to move messages seen from INBOX to another folder