AXIGEN Gateway is a secure mail relay server, available for many Linux distributions and for FreeBSD. AXIGEN uses firewall-like connection rules and is capable of integrating with most anti-virus / anti-spam applications. 22
AXIGEN - a carrier-class messaging solution for Service Providers. It runs on Windows, Linux, BSD, Solaris and offers (E)SMTP/IMAP4/POP3/Webmail/List Server, Web/CLI Admin, delegated administration, clustering support, FREE technical support. 19