AA Mail Server is easy to use enterprise level email server software for Windows 2000/XP/2003, supports 1~20000+ users with each 8G+ mailbox capacity, includes features: SMTP/POP3, anti-spam, email archiving/email monitoring, UTF-8 Webmail, mail 2 web, ISP mail binding server mode etc. You can build up your own email server easily with AA Mail Server.