Free and open source webmail software
NOCC is a simple and fast Webmail client which can handle POP3, SMTP, and IMAP servers. It is written with PHP5 (uses sessions), has low requirements (no database, frames). Features multi-language support, MIME attachments, displays HTML messages.
AfterLogic WebMail Lite PHP is a free AJAX webmail application. Users can receive, view, manage, compose, and send email through web interface (IMAP and SMTP supported). Source code included.
Simple, modern & fast web-based email client
Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.
Open source SMTP/POP3/SSL e-mail server. Web admin panel, fast and stylish AJAX webmail, secure connections, SMTP authentication, multiple domains, account/domain aliasing, anti-spam, antivirus integration, mailing lists.
EGroupware has moved to Github, please find all our downloads there: https://github.com/EGroupware/egroupware/releases EGroupware is a multi-user, web-based groupware suite. Currently available modules include: email, addressbook, calendar, infolog (notes, to-do's, phone calls), content management, wiki, project management, tracker, timesheet, knowledge base, CalDAV/CardDAV
LED Lens Information Network
IMAP compatible eMail reader integrated into PHProjekt. 8-bit compliant. Easily adaptable. Support for all PHProjekt languages
W3MAIL - fast and small webmail client written in PHP5. It provides easy webmail access to IMAP accounts and has very few requirements to install. Features multi-language support, simple contacts manager, MIME attachments, displays HTML messages.
Hello world!This project is a SquirrelMail modification(mostly in design)with maximum plugins included.developed by myself for me:)and for others too:).just compare!it seems like another mail client!better!much more!.Everybody can help to make it better!
phlyMail is a Webmail and data hosting application. It features IMAP, POP3, SMS, Fax support, a Calendar, Bookmarks, files manager. Multiuser and single user editions available.
phpQmailAdmin - QMail mail messages administration tool. Includes viewing, moving, deleting, copying messages between users. Supports attachments and viewing it on its MIME types. Provides mail queue analizator (viewing, deleting from queue).