RFC 1494 (rfc1494) - Page 2 of 19

Equivalences between 1988 X

RFC 1494              X.400/MIME Body Equivalences           August 1993


   7.8. image/gif - gif-body-part ...............................   16
   8. OID Assignments ...........................................   17
   9. IANA Registration form for new mappings ...................   17
   10. Security Considerations ..................................   18
   11. Authors' Addresses .......................................   18
   12. References ...............................................   19

1.  Introduction

   This document is a companion to [1], which defines the principles
   behind interworking between MIME-based RFC-822 mail and X.400 mail.
   This document describes the content of the "IANA MHS/MIME Equivalence
   table" referenced in the companion document, and defines the initial
   configuration of this table.  Mappings for new MIME content-types
   and/or X.400 body part types should be registered with the IANA to
   minimize redundancy and promote interoperability.

   In MIME, the term "content-type" is used to refer to an information
   object contained in the body of a message.  In contrast, X.400 uses
   the term "body part type."  In this document, the term "body part" is
   used to refer to either.

   Please send comments to the MIME-MHS mailing list:
   [email protected]>.

2.  Equivalence Table Definition

   For each MIME content-type/X.400 body part pair, the Equivalence
   Table will contain an entry with the following sections:

   X.400 Body Part
        This section identifies the X.400 Body Part governed by this
        Table entry. It includes any OBJECT IDENTIFIERs or other
        parameters necessary to uniquely identify the Body Part.

   MIME Content-Type
        This section identifies the MIME content-type governed by this
        Table entry.  The MIME content-type named here must be
        registered with the IANA.

   Conversion Type
        This section identifies the type of conversion applied.  See the
        section on Generic Conversions for an explanation of the
        possible values.







Alvestrand & Thompson