RFC 1872: The MIME Multipart/Related Content-type

The Multipart/Related content-type provides a common mechanism for representing objects that are aggregates of related MIME body parts. This document defines…

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Outgoing relationships (2 related RFCs)

Informative reference — RFC 1521: MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies
Informative reference — RFC 1524: A User Agent Configuration Mechanism For Multimedia Mail Format Information

Incoming relationships (2 related RFCs)

Obsoleted by — RFC 2112: The MIME Multipart/Related Content-type
Informatively referenced by — RFC 2426: vCard MIME Directory Profile