@Mail
Perl-based web email system that features WAP, POP3, or IMAP.
EMUmail
Builds and creates webmail servers for accessing POP3 and IMAP email from a variety of web browsers.
iNetMail
Convenient web-based solution for online electronic mail management.
MailMan
Web-based email system that supports CGI scripts and can be installed on any website.
Open WebMail
Webmail system based on the Neomail version 1.14 from Ernie Miller. Useful for managing large mail folder files in a memory efficient way.
Twiggi
Web-based email client and constant manager solution for Linux that includes the ability to securely share information to either individual or in groups.
Webmail ASP
Webmail server that offers full email client functionality, an advanced user interface, and open access to ASP source code.
WING
Open source Apache-based system which allows users to access email held on an IMAP server via any web browser.
XandMail
Web communication solution with case studies, news and events.