http://www.rfc-editor.org/rfc/rfc1204.txt
RFC 1204: Message Posting Protocol (MPP), S. Yeh, D. Lee1991-02-01T23:00:00-00:00This memo describes a protocol for posting messages from workstations (e.g., PCs) to a mail service host. This RFC specifies an Experimental Protocol for the Internet community. It does not specify any standard.