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MIXER (Mime Internet X.400 Enhanced Relay): Mapping between X.400 and RFC 822/MIME (RFC2156)

IP.com Disclosure Number: IPCOM000002713D
Original Publication Date: 1998-Jan-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Kille: AUTHOR

Abstract

Status of this Memo

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 1% of the total text.

Network Working Group S. Kille

Request for Comments: 2156 Isode Ltd.

Obsoletes: 987, 1026, 1138, 1148, 1327, 1495 January 1998

Updates: 822

Category: Standards Track

MIXER (Mime Internet X.400 Enhanced Relay):

Mapping between X.400 and RFC 822/MIME

Status of this Memo

This document specifies an Internet standards track protocol for the

Internet community, and requests discussion and suggestions for

improvements. Please refer to the current edition of the "Internet

Official Protocol Standards" (STD 1) for the standardization state

and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

Table of Contents

1 - Overview ...................................... 3

1.1 - X.400 ......................................... 3

1.2 - RFC 822 and MIME .............................. 3

1.3 - The need for conversion ....................... 4

1.4 - General approach .............................. 4

1.5 - Gatewaying Model .............................. 5

1.6 - Support of X.400 (1984) ....................... 8

1.7 - X.400 (1992) .................................. 8

1.8 - MIME .......................................... 8

1.9 - Body Parts .................................... 8

1.10 - Local and Global Scenarios .................... 9

1.11 - Compatibility with previous versions .......... 10

1.12 - Aspects not covered ........................... 10

1.13 - Subsetting .................................... 11

1.14 - Specification Language ........................ 11

1.15 - Related Specifications ........................ 11

1.16 - Document Structure ............................ 12

1.17 - Acknowledgements .............................. 12

2 - Service Elements .............................. 13

2.1 - The Notion of Service Across a Gateway ........ 13

2.2 - RFC 822 ....................................... 15

2.3 - X.400 ......................................... 18

3 - Basic Mappings ................................ 27

3.1 - Notation ...................................... 27

3.2 - ASCII and IA5 ................................. 29

3.3 - Standard Types ................................ 29

3.4 - Encoding ASCII in Printable String ............ 33

3.5 - RFC 1522 ...................................... 34

4 - Addressing and Message IDs .................... 35

4.1 - A textual representation of MTS.ORAddress ..... 36

4.2 - Global Address Mapping ........................ 43

4.3 - EBNF.822-address <-> MTS.ORAddress ............ ...