RFC 772 · UNKNOWN · 1980 MON · 14 SEP 2026

Mail Transfer Protocol

By S. Sluizer, J. Postel · Published September 1980 · DOI 10.17487/RFC0772

Overview

RFC 772, “Mail Transfer Protocol”, is an Unknown document published in September 1980 by S. Sluizer, J. Postel. It has been obsoleted by RFC 780 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

What “Unknown” means

The standards-track status of this early RFC was never formally classified.

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Relationships to other RFCs
Obsoleted by
RFC 780
Other RFCs from 1980