Preliminary note ================ OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standart extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol. OpenSMTPD runs on top of the OpenBSD operating system but also has a portable version that can build and run on several systems, including: - Linux - FreeBSD - NetBSD - DragonFly - MacOSX For more information: http://www.opensmtpd.org/portable.html People interested about OpenSMTPD are encouraged to subscribe to our mailing list: http://www.opensmtpd.org/list.html and to join the IRC channel: #OpenSMTPD @ irc.freenode.net Cheers !