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SMTP Service Extension for 8bit-MIMEtransport (RFC1426)

IP.com Disclosure Number: IPCOM000002253D
Original Publication Date: 1993-Feb-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 5 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Klensin: AUTHOR [+7]

Abstract

This memo defines an extension to the SMTP service whereby an SMTP content body containing octets outside of the US ASCII octet range (hex 00-7F) may be relayed using SMTP.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 25% of the total text.

Network Working Group J. Klensin, WG Chair

Request for Comments: 1426 United Nations University

N. Freed, Editor

Innosoft International, Inc.

M. Rose

Dover Beach Consulting, Inc.

E. Stefferud

Network Management Associates, Inc.

D. Crocker

The Branch Office

February 1993

SMTP Service Extension

for 8bit-MIMEtransport

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.

1. Abstract

This memo defines an extension to the SMTP service whereby an SMTP

content body containing octets outside of the US ASCII octet range

(hex 00-7F) may be relayed using SMTP.

2. Introduction

Although SMTP is widely and robustly deployed, various extensions

have been requested by parts of the Internet community. In

particular, a significant portion of the Internet community wishes to

exchange messages in which the content body consists of a MIME

message [3] containing arbitrary octet-aligned material. This memo

uses the mechanism described in [5] to define an extension to the

SMTP service whereby such contents may be exchanged. Note that this

extension does NOT eliminate the possibility of an SMTP server

limiting line length; servers are free to implement this extension

but nevertheless set a line length limit no lower than 1000 octets.

3. Framework for the 8bit MIME Transport Extension

The 8bit MIME transport extension is laid out as follows:

(1) the name of the SMTP service extension defined here is

8bit-MIMEtransport;

(2) the EHLO keyword value associated with the extension is

8BITMIME;

(3) no parameter is used with the 8BITMIME EHLO keyword;

(4) one optional parameter using the keyword BODY is added to

the MAIL FROM command. The value associated with this

parameter is a k...