RFC 1327 · PROPOSED STANDARD · 1992

Mapping between X.400 / ISO 10021 and RFC 822

Overview

RFC 1327, “Mapping between X.400 / ISO 10021 and RFC 822”, is a Proposed Standard document published in May 1992 by S. Hardcastle-Kille. It updates RFC 822. It obsoletes RFC 987, RFC 1026, RFC 1138, RFC 1148. It has since been updated by RFC 1495. It has been obsoleted by RFC 2156 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

This document specifies a mapping between two protocols. This specification should be used when this mapping is performed on the DARPA Internet or in the UK Academic Community. This specification may be modified in the light of implementation experience, but no substantial changes are expected. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 1327 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC obsoletes
RFC 987 RFC 1026 RFC 1138 RFC 1148
Obsoleted by
RFC 2156
This RFC updates
RFC 822
Updated by
RFC 1495
Other RFCs from 1992

Who Is Online

In total there are 60 users online: 0 registered, 53 guests and 7 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: Applebot Baiduspider Bingbot Googlebot Other Bot PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372