MBSE BBS is a full FTN-capable ANSI BBS and mailer package.
Cross-platform BBS (ANSI) Terminal
Small ANSI C lib for dropbox/windows azure communication
Protects you from spam mails and virus mails effectively with milter
a lightweight ANSI C library for handling POP3 mailboxes
OpenSource high performance mail policy daemon for Postfi
GlowMuck is a multi-user text-based role-play platform, a MUD server.