AA Mail Server, http://www.aamailsoft.com, is an easy to use database based Windows mail server software for Windows 2000/XP/2003/Vista (1~20000+ users with each 8G+ capacity), includes features of SMTP/POP3, anti-spam protection, multi-language UTF8 Webmail server, cost-saving mail mapping server mode and powerful employee email archiving etc. You can use AA Mail Server to build up your own Windows mail server ready even within 1 minute.
Free download