LumiSoft - Mail Server
[http://www.lumisoft.ee/lsWWW/ENG/Products/Mail_Server/mail_picture_eng.htm] - - public:zhesto
.NET open source windows mail server
.NET open source windows mail server
GPG/PGP message encryption and decryption gateway (Win)
blocks spam at the origination server and can be configured to block DoS attacks
USE is Unsolicited Commercial Email a.k.a SPAM