Lotus Notes, NTMail, SL Mail, QMail, Exim, IMail, Lotus Domino 5, LSMTP, MailSite, MDaemon, MetaInfo, Sendmail, MS IMS/IIS, Netscape Messaging Server, NTMail, and Post.Office are all supported by Hexamail. In addition Hexamail can be used in conjunction with any other SMTP compatible mail server