mail server for linux

Dovecot is an open source IMAP and POP3 server for Linux/UNIX-like systems

a Freeware Mail Server for Microsoft Windows XP and Microsoft Windows 2000

AXIGEN FREE mail server-(E)SMTP,POP3,IMAP4,WebMail,RPOP,Groupware,basic support.

Open source POP3/SMTP mail server with AJAX webmail and multiple domains.

Combines F-Secure Linux Client Security and F-Secure Linux Server Security.

DeskNow Mail and Collaboration server is a full featured and easy to use server.

Vivian Mail - A free mail client for SMTP and POP3-Server.

Mulberry is a powerful, easy to use electronic mail (email) and calendar program

Parabuild is a software build management and continuous integration server.

SMTP, POP3, Mail.