RFC 680: Message Transmission Protocol

Extends message field definition beyond RFC 561 attempts to establish syntactic and semantic standards for ARPANET; see also RFCs 733 and 822.

Read RFC 680 on the RFC Editor

Outgoing relationships (1 related RFC)

Updates — RFC 561: Standardizing Network Mail Headers

Incoming relationships (1 related RFC)

Informatively referenced by — RFC 759: Internet Message Protocol