RFC 1872 (rfc1872) - Page 1 of 8


The MIME Multipart/Related Content-type



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Network Working Group                                        E. Levinson
Request for Comments: 1872            Accurate Information Systems, Inc.
Category: Experimental                                     December 1995


                The MIME Multipart/Related Content-type

Status of this Memo

   This memo defines an Experimental Protocol for the Internet
   community.  This memo does not specify an Internet standard of any
   kind.  Discussion and suggestions for improvement are requested.
   Distribution of this memo is unlimited.

Abstract

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

1.  Introduction

   Several applications of MIME, including MIME-PEM, and MIME-Macintosh
   and other proposals, require multiple body parts that make sense only
   in the aggregate.  The present approach to these compound objects has
   been to define specific multipart subtypes for each new object.  In
   keeping with the MIME philosophy of having one mechanism to achieve
   the same goal for different purposes, this document describes a
   single mechanism for such aggregate or compound objects.

   The Multipart/Related content-type addresses the MIME representation
   of compound objects.  The object is categorized by a "type"
   parameter.  Additional parameters are provided to indicate a specific
   starting body part or root and auxiliary information which may be
   required when unpacking or processing the object.

   Responsibility for the display or processing of a Multipart/Related's
   constituent entities rests with the application that handles the
   compound object.











Levinson                      Experimental


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