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RFC 987 - Mapping between X.400 and RFC 822

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Mapping between X.400 and RFC 822 (RFC 987, ; obsoleted by RFC 2156, RFC 1327)

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RFC 987: Mapping between X.400 and RFC 822

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https://datatracker.ietf.org/doc/html/rfc987

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IETF Datatracker

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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.

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