Updated: 12/29/2005
EmailServer
!!Email servers
Here are some email servers for windows. [Report a dead link]
http://www.webattack.com/Freeware/server/fwmailserver.shtml

Argosoft Mail Server , 1,232kb
ArGoSoft Mail Server is fully functional STMP/POP3/Finger server for Windows , which will let you turn your computer into the email system. It s very compact, takes only about 1Mb of disk space, does not have any specific memory requirements, and it s very easy to use. ArGoSoft Mail Server supports unlimited number of accounts, and SMTP authentication. It relays the messages directly to Mail exchangers, bypassing your ISP. This free version is intended for personal use and does not support multiple Ip addresses. More advanced shareware versions are also available from the developer s home page. [Report a dead link]
http://www.webattack.com/Freeware/server/fwmailserver.shtml

Junk Muncher
Local POP server which filters email based on keywords. Free lite version. Also at Junkmuncher.com [Report a dead link]
http://www.webattack.com/get/junkmuncher.shtml

Mail Enable Std , 4,814kb
Mail Enable Standard (Free Personal Version) is a mail server for Windows NT/2000/XP. It supports SMTP and POP3, an unlimited amount of email addresses, domains, groups and mailing lists. It comes with powerful relay control options, SMTP authentication, APOP authentication and several anti-spam measures. The program makes uses of the MMC console, thereby integrates into Windows. All the configurations are available from an easy to use interface and can be cerified, using the built in diagnostic utility. [Report a dead link]
http://www.webattack.com/Freeware/server/fwmailserver.shtml

Mercury/32 , 1,367kb
Mercury/32 runs on Windows 95, 98, NT4 or 2000 workstations and can provide mail services to a single computer or a local area network. It has special support for the Novell NetWare environment - it integrates with a NetWare LAN in exactly the same manner as the NLM version of Mercury. It can sustain throughput of up to 8,000 mail messages per hour on suitably-equipped systems. The program consists of multiple modules that can be activated depending on your needs. Mercury/32 comes with a long list of advanced features and is extremely standards-compliant, supporting the major Internet mail-related protocols and has special features designed for use in dialup environments. The program is fairly complex and is best suited for more advanced users or network administators. Full documentation is included. Also at http://www.it-mate.co.uk/support/mercuryeditor.asp. [Report a dead link]
http://www.webattack.com/Freeware/server/fwmailserver.shtml

Qpopper
POP email server for Linux and windows. [Report a dead link]
http://www.eudora.com/qpopper/

Revilloc Mailserver , 4,983kb
RevilloC MailServer is a basic local mail server that allows you to send and collect mail through a singler location , even if using multiple accounts and PCs. The program acts as a local SMTP and POP server, you set it up to collect the mail from your ISPs email account on a specified interval and can then pick it up by connection to RevilloC MailServer, rather than your remote ISP account. The same works with sending mail. RevilloC MailServer also acts as a proxy server, allowing you to share your internet connection with networked PCs. [Report a dead link]
http://www.webattack.com/Freeware/server/fwmailserver.shtml

Sendmail
For windows and unix. [Report a dead link]
http://www.sendmail.org

Xmail
Mail server for Unix/Win NT/2000. 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/DUL and custom ( IP based and address based ) spam protection, SMTP authentication ( PLAIN LOGIN CRAM-MD5 POP3-before-SMTP and custom ), a POP3 account syncronizer with external POP3 accounts, account aliases, domain aliases, custom mail processing, direct mail files delivery, custom mail filters, mailing lists, remote administration, custom mail exchangers, logging, and multi-platform code. XMail sources compile under GNU/Linux, FreeBSD, Solaris and NT/2K. Read the file README.TXT included with the distribution. [Report a dead link]
http://xmailserver.org