RFC 987

Mapping between X.400 and RFC 822, June 1986

Canonical URL:
File formats:
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Obsoleted by:
RFC 2156, RFC 1327
Updated by:
RFC 1026, RFC 1138, RFC 1148
S.E. Kille

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC0987

Discuss this RFC: Send questions or comments to iesg@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


The X.400 series protocols have been defined by CCITT to provide an Interpersonal Messaging Service (IPMS), making use of a store and forward Message Transfer Service. It is expected that this standard will be implemented very widely. This document describes a set of mappings which will enable interworking between systems operating the X.400 protocols and systems using RFC-822 mail protocol or protocols derived from RFC-822. This RFC suggests a proposed protocol for the ARPA-Internet community, and requests discussion and suggestions for improvements.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.

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