Software by AfterLogic Corporation

MailBee WebMail Pro PHP is an advanced web-based email client written in PHP. AJAX interface, SMTP, POP3, IMAP, calendar, folders, rich-text editor, address book, many accounts per user, web admin panel, and more. Can use MS SQL or MySQL database.

MailBee WebMail Pro .NET is an advanced web-based email client written in ASP.NET. AJAX interface, SMTP, POP3, IMAP, folders, calendar, rich-text editor, address book, many accounts per user, web admin panel. MS Access, MS SQL, MySQL database backend

MailBee WebMail Lite is ASP webmail application which supports AJAX and skins. Users can receive, view, manage, compose, and send email through web interface (POP3 and SMTP supported). Source code included.

AfterLogic XMail Server is a free open source e-mail server for Windows and Linux platforms.Web admin tool, AJAX webmail, ESMTP, secure TLS/SSL, SMTP authentication, account/domain aliasing, anti-spam features,mailing lists, logging, and more.