< draft-ietf-yam-rfc1652bis-02.txt   draft-ietf-yam-rfc1652bis-03.txt >
YAM J. Klensin YAM J. Klensin
Internet-Draft Internet-Draft
Obsoletes: 1652 (if approved) N. Freed Obsoletes: 1652 (if approved) N. Freed
Intended status: Standards Track Sun Microsystems Intended status: Standards Track Sun Microsystems
Expires: August 21, 2010 M. Rose Expires: August 23, 2010 M. Rose
Dover Beach Consulting, Inc. Dover Beach Consulting, Inc.
D. Crocker, Ed. D. Crocker, Ed.
Brandenburg InternetWorking Brandenburg InternetWorking
February 17, 2010 February 19, 2010
SMTP Service Extension for 8-bit MIME Transport SMTP Service Extension for 8-bit MIME Transport
draft-ietf-yam-rfc1652bis-02 draft-ietf-yam-rfc1652bis-03
Abstract Abstract
This memo defines an extension to the SMTP service whereby an SMTP This memo defines an extension to the SMTP service whereby an SMTP
content body consisting of text containing octets outside of the US- content body consisting of text containing octets outside of the US-
ASCII octet range (hex 00-7F) may be relayed using SMTP. ASCII octet range (hex 00-7F) may be relayed using SMTP.
Status of this Memo Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the This Internet-Draft is submitted to IETF in full conformance with the
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt. http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html. http://www.ietf.org/shadow.html.
This Internet-Draft will expire on August 21, 2010. This Internet-Draft will expire on August 23, 2010.
Copyright Notice Copyright Notice
Copyright (c) 2010 IETF Trust and the persons identified as the Copyright (c) 2010 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the BSD License. described in the BSD License.
1. Introduction 1. Introduction
Although SMTP is widely and robustly deployed, various extensions Although SMTP is widely and robustly deployed, various extensions
have been requested by parts of the Internet community. In have been requested by parts of the Internet community. In
particular, a significant portion of the Internet community wishes to particular, a significant portion of the Internet community wishes to
exchange messages in which the content body consists of a MIME exchange messages in which the content body consists of a MIME
message [RFC2045][RFC2046] containing arbitrary octet-aligned message [RFC2045][RFC2046][RFC5322] containing arbitrary octet-
material. This memo uses the mechanism described in [RFC5321] to aligned material. This memo uses the mechanism described in
define an extension to the SMTP service whereby such contents may be [RFC5321] to define an extension to the SMTP service whereby such
exchanged. Note that this extension does NOT eliminate the contents may be exchanged. Note that this extension does NOT
possibility of an SMTP server limiting line length; servers are free eliminate the possibility of an SMTP server limiting line length;
to implement this extension but nevertheless set a line length limit servers are free to implement this extension but nevertheless set a
no lower than 1000 octets. Given that this restriction still line length limit no lower than 1000 octets. Given that this
applies, this extension does NOT provide a means for transferring restriction still applies, this extension does NOT provide a means
unencoded binary via SMTP. for transferring unencoded binary via SMTP.
2. Framework for the 8bit MIME Transport Extension 2. Framework for the 8bit MIME Transport Extension
The 8bit MIME transport extension is laid out as follows: The 8bit MIME transport extension is laid out as follows:
1. the name of the SMTP service extension defined here is 8bit- 1. the name of the SMTP service extension defined here is 8bit-
MIMEtransport; MIMEtransport;
2. the EHLO keyword value associated with the extension is 8BITMIME; 2. the EHLO keyword value associated with the extension is 8BITMIME;
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