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Equivalences between 1988 X.400 and RFC-822 Message Bodies (RFC1494)

IP.com Disclosure Number: IPCOM000002322D
Original Publication Date: 1993-Aug-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 16 page(s) / 35K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

H. Alvestrand: AUTHOR [+2]

Abstract

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.

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Network Working Group H. Alvestrand

Request for Comments: 1494 SINTEF DELAB

S. Thompson

Soft*Switch, Inc.

August 1993

Equivalences between 1988 X.400 and RFC-822 Message Bodies

Status of this Memo

This RFC specifies an IAB standards track protocol for the Internet

community, and requests discussion and suggestions for improvements.

Please refer to the current edition of the "IAB Official Protocol

Standards" for the standardization state and status of this protocol.

Distribution of this memo is unlimited.

Table of Contents

1. Introduction ............................................. 2

2. Equivalence Table Definition ............................. 2

3. Generic conversions ...................................... 3

3.1. Byte copy .............................................. 3

3.2. Text Conversion ........................................ 3

3.3. Image Conversion ....................................... 3

3.4. Tunneling .............................................. 3

4. Conversion Table for known X.400 and MIME Types ......... 4

4.1. MIME to X.400 Table .................................... 4

4.2. X.400 to MIME Table .................................... 4

5. Newly defined X.400 Body Parts ........................... 5

5.1. Use of OBJECT IDENTIFIERs and ASN.1 MACROS ............. 5

5.2. The Generic MIME Extended Body Part .................... 6

5.3. The PostScript body part ............................... 7

5.4. The JPEG body part ..................................... 7

5.5. The GIF body part ...................................... 8

6. Newly defined MIME content-types ......................... 8

6.1. The application/x400-bp content-type ................... 8

6.2. The image/g3fax content-type ........................... 9

6.2.1. G3Fax Parameters ..................................... 9

6.2.2. Content Encoding ..................................... 10

6.3. The Application/ODA content-type ....................... 11

7. Equivalence Definitions ................................... 11

7.1. IA5Text - text/plain .................................... 11

7.2. GeneralText - text/plain (ISO-8859) ..................... 12

7.3. BilaterallyDefined - application/octet-stream .......... 13

7.4. ODA - application/oda ................................... 14

7.5...