Gattaca Server - solution for the organization internal or external e-post service for the central or regional office. Gattaca Server full featured, 100 % compatible to existing standards POP3 and SMTP mail server. You can use it not only as an internal server, but also as a server for reception or sendings e-mails to others mail servers in the Internet or to main mail server in your organization. The Gattaca Server's license does not contain restriction by quantity of users. After purchasing license for Gattaca Server you can register any quantity of users which is necessary. With growth of needs in your organization you will not need to get additional licenses for new users. Gattaca Server use DNSBL, SPF, white and black list for protecting user's mail boxes from SPAM. During work Gattaca Server automatically update white list, by additing e-mail addresses which is sending e-mails. Also all incomming correspondence checking in DNSBL, black and white list, performing checking infringements SPF policy. Subject for such email will start with phrase [AntiSPAM]. It will allow you to filter such letters using mail agent filters and not lose important e-mails. Gattaca Mail Server working as service under control of operational system Microsoft Windows NT/2000/XP/2003. Gattaca Mail Server start with computer start, and can work on a computer without necessity of presence of the user.