Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1
draft-ietf-spfbis-4408bis-19
| The information below is for an old version of the document | |||
|---|---|---|---|
| Document | Type | Active Internet-Draft (spfbis WG) | |
| Author | Scott Kitterman | ||
| Last updated | 2013-09-12 (latest revision 2013-08-18) | ||
| Replaces | draft-kitterman-4408bis | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | pdf htmlized (tools) htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | S Moonesamy | ||
| Shepherd write-up | Show (last changed 2013-08-16) | ||
| IESG | IESG state | IESG Evaluation::Revised I-D Needed | |
| Consensus Boilerplate | Unknown | ||
| Telechat date |
Needs 9 more YES or NO OBJECTION positions to pass. |
||
| Responsible AD | Pete Resnick | ||
| IESG note | You may wish to view the summary on the IETF list: https://www.ietf.org/ibin/c5i?mid=6&rid=49&gid=0&k1=933&k2=72183&tid=1378561974 | ||
| Send notices to | spfbis-chairs@tools.ietf.org, draft-ietf-spfbis-4408bis@tools.ietf.org | ||
| IANA | IANA review state | IANA OK - Actions Needed | |
Network Working Group S. Kitterman
Internet-Draft Kitterman Technical Services
Obsoletes: 4408 (if approved) August 17, 2013
Intended status: Standards Track
Expires: February 18, 2014
Sender Policy Framework (SPF) for Authorizing Use of Domains in Email,
Version 1
draft-ietf-spfbis-4408bis-19
Abstract
Email on the Internet can be forged in a number of ways. In
particular, existing protocols place no restriction on what a sending
host can use as the "MAIL FROM" of a message or the domain given on
the SMTP HELO/EHLO commands. This document describes version 1 of
the Sender Policy Framework (SPF) protocol, whereby ADministrative
Management Domains (ADMDs) can explicitly authorize the hosts that
are allowed to use its domain names, and a receiving host can check
such authorization.
This document obsoletes RFC4408.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on February 18, 2014.
Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
Kitterman Expires February 18, 2014 [Page 1]
Internet-Draft Sender Policy Framework (SPF) August 2013
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
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described in the Simplified BSD License.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
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material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Kitterman Expires February 18, 2014 [Page 2]
Internet-Draft Sender Policy Framework (SPF) August 2013
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.1. Keywords . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.2. Imported Definitions . . . . . . . . . . . . . . . . . 6
1.1.3. MAIL FROM Definition . . . . . . . . . . . . . . . . . 7
1.1.4. HELO Definition . . . . . . . . . . . . . . . . . . . 7
1.2. check_host() . . . . . . . . . . . . . . . . . . . . . . . 7
2. Operational Overview . . . . . . . . . . . . . . . . . . . . . 8
2.1. Publishing Authorization . . . . . . . . . . . . . . . . . 8
2.2. Checking Authorization . . . . . . . . . . . . . . . . . . 8
2.3. The "HELO" Identity . . . . . . . . . . . . . . . . . . . 9
2.4. The "MAIL FROM" Identity . . . . . . . . . . . . . . . . . 10
2.5. Location of Checks . . . . . . . . . . . . . . . . . . . . 10
2.6. Results of Evaluation . . . . . . . . . . . . . . . . . . 10
2.6.1. None . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.2. Neutral . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.3. Pass . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.4. Fail . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.5. Softfail . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.6. Temperror . . . . . . . . . . . . . . . . . . . . . . 11
2.6.7. Permerror . . . . . . . . . . . . . . . . . . . . . . 11
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