Binkd is a Fidonet mailer designed to operate via TCP/IP networks. As a FTN-compatible internet daemon, it makes possible efficient utilization of TCP/IP protocol suite as a transport layer in FTN-based (Fido Technology Network) networks. Binkd expects your spool for Fido-like networks to be in BSO ("Bink style outbound") format. BSO is also used by ifmail and BinkleyTerm mailers.