IETF RFC 2157
Mapping between X.400 and RFC-822/MIME Message Bodies
|Publication Date:||1 January 1998|
This document is a companion to [MIXER], which defines the principles and translation of headers for interworking between MIME-based RFC-822 mail and X.400 mail.
This document defines how to map body parts of X.400 messages into MIME entities and vice versa, including the handling of multipart messages and forwarded messages.