FTGateOffice - From the developer: "FTGateOffice is the best selling mail server which was recently voted PC Magazine (UK) Editor's Choice for Best Small Business mail server. FTGateOffice is a reliable, powerful yet flexible mail server which contains all the features you would expect from a top-class mail server, including our revolutionary new FTScript Web Scripting facilities, anti-virus integration, sophisticated anti-SPAM options, comprehensive IP security features, NT SAM integration, SMTP/ESMTP, SmartPop, web server, web mail, LDAP, POP3, attachment filters, mail filters, system monitoring, MX delivery, dial-up facilities, scheduling, user mailboxes, list mailboxes, group mailboxes, robot mailboxes, autoresponder mailboxes, list servers."