RFC 1496 (rfc1496) - Page 1 of 5
Rules for downgrading messages from X
Alternative Format: Original Text Document
Network Working Group H. Alvestrand
Request for Comments: 1496 SINTEF DELAB
Updates: 1328 J. Romaguera
NetConsult AG
K. Jordan
Control Data Systems, Inc.
August 1993
Rules for Downgrading Messages from X.400/88 to X.400/84 When
MIME Content-Types are Present in the Messages
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 ............................................... 1
2. Basic approach ............................................. 2
3. Conversion rules ........................................... 3
3.1 EBP conversions to Basic .................................. 3
3.2 Encapsulation format ...................................... 3
4. Implications ............................................... 4
5. Security Considerations .................................... 4
6. Authors' Addresses ......................................... 4
7. References ................................................. 5
1. Introduction
Interworking between X.400(88) and MIME is achieved by [4], which
complements RFC-1327 [2], which in turn specifies the interworking
between X.400(88) and RFC-822 based mail.
Interworking between X.400(88) and X.400 (84) is achieved by RFC-1328
[3]. That document does not describe what to do in the case where
body parts arrive at the gateway that cannot be adequately
represented in the X.400(84) system.
This document describes how RFC-1328 must be modified in order to
provide adequate support for the scenarios:
SMTP(MIME) -> X.400(84)
X.400(84) -> SMTP(MIME)
Alvestrand, Romaguera & Jordan
