AA Mail Server is an easy to use database based enterprise level Windows mail server software for Windows 2000/XP/2003/Vista. It supports 1~20000+ users with each 8G+ capacity, includes features of SMTP/POP3, effective anti-spam protection, multi-language UTF-8 Webmail server, powerful employee email monitoring etc. AA Mail Server's unique feature of mail mapping server mode will help you save cost significantly when binding with ISP mail service. AA Mail Server is great for small to medium sized companies to host their LAN or Internet email service. You can freely try AA Mail Server as long as 45 days! Trial version supports unlimited mailboxes, unlimited domains and without any function restrictions. Just give it a try to find out how easily to build a Windows mail server for your own business.