Definition: Request For Comments (RFC) is the format Internet standards are published in.
RFCs relevant for email are published by the Internet Engineering Task Force (IETF) and include RFC 821 for SMTP, RFC 822, which specifies the format of Internet email messages, or RFC 1939, which lays down the PO protocol.
Also Known As: Request For Comments
Standards make email go round the world.
Elsewhere on the Web:
IETF RFC Site
Get the official word on all things Internet from the Internet Engineering Task Force.