XMail Download
XMail is an Internet and intranet mail server featuring an SMTP server, POP3 server, finger server, multiple domains, no need for users to have a real system account, SMTP relay checking, RBL/RSS/ORBS and custom (IP based and address based) spam protection, SMTP authentication (PLAIN LOGIN CRAM-MD5 and custom), a POP3 account syncronizer with external POP3 accounts, aliases, custom mail processing, custom mail filters, mailing lists, remote administration, custom mail exchangers, logging, and multi-platform code.