RFC - 987

Mapping between X.400 and RFC 822

Original:	ftp://ftp.isi.edu/in-notes/rfc987.txt
Authors:	S.E. Kille [University College London]
Date:	June 1986
Category:	Informational
This specification has been !!! obsoleted !!!

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Obsoleted by:
RFC-2156prop	MIXER (Mime Internet X.400 Enhanced Relay): Mapping between X.400 and RFC 822/MIME
RFC-1327	Mapping between X.400(1988) / ISO 10021 and RFC 822 (Obsoleted by RFC-2156prop) (Updated by RFC-1495)

Updated by:
RFC-1148	Mapping between X.400(1988) / ISO 10021 and RFC 822 (Obsoleted by RFC-2156prop, RFC-1327 -> RFC-2156prop)
RFC-1138	Mapping between X.400(1988) / ISO 10021 and RFC 822 (Obsoleted by RFC-2156prop, RFC-1327 -> RFC-2156prop) (Updated by RFC-1148)
RFC-1026	Addendum to RFC 987: (Mapping between X.400 and RFC-822) (Obsoleted by RFC-2156prop, RFC-1327 -> RFC-2156prop) (Updated by RFC-1148, RFC-1138)

Referred by:	34 RFC
Refers to:	5 RFC

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Status

This RFC suggests a proposed protocol for the ARPA-Internet community, and requests discussion and suggestions for improvements. Distribution of this memo is unlimited.

Abstract

This document describes a set of mappings which will enable interworking between systems operating the CCITT X.400 (1984) series of protocols [CCITT84a], and systems using the RFC 822^std11(-> 2822^prop) mail protocol [Crocker82a], or protocols derived from RFC 822^std11(-> 2822^prop). The approach aims to maximise the services offered across the boundary, whilst not requiring unduly complex mappings. The mappings should not require any changes to end systems.

This specification should be used when this mapping is performed on the ARPA-Internet or in the UK Academic Community. This specification may be modified in the light of implementation experience, but no substantial changes are expected.

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