DMARC (Domain-based Message Authentication, Reporting, and Conformance) Extension For PSDs (Public Suffix Domains)
draft-ietf-dmarc-psd-03
The information below is for an old version of the document |
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Active Internet-Draft (dmarc WG)
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Scott Kitterman
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Last updated |
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2019-05-07
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draft-kitterman-dmarc-psd
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Internet Engineering Task Force (IETF)
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pdf
htmlized (tools)
htmlized
bibtex
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Reviews |
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WG state
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WG Document
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Document shepherd |
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Murray Kucherawy
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IESG |
IESG state |
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I-D Exists
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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(None)
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Send notices to |
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Murray Kucherawy <superuser@gmail.com>
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Network Working Group S. Kitterman
Internet-Draft fTLD Registry Services
Intended status: Experimental May 7, 2019
Expires: November 8, 2019
DMARC (Domain-based Message Authentication, Reporting, and Conformance)
Extension For PSDs (Public Suffix Domains)
draft-ietf-dmarc-psd-03
Abstract
DMARC (Domain-based Message Authentication, Reporting, and
Conformance) is a scalable mechanism by which a mail-originating
organization can express domain-level policies and preferences for
message validation, disposition, and reporting, that a mail-receiving
organization can use to improve mail handling. DMARC policies can be
applied at the individual domain level or for a set of domains at the
organizational level. The design of DMARC precludes grouping
policies for a set of domains above the organizational level, such as
TLDs (Top Level Domains). These types of domains (which are not all
at the top level of the DNS tree) can be collectively referred to as
Public Suffix Domains (PSDs). For the subset of PSDs that require
DMARC usage, this memo describes an extension to DMARC to enable
DMARC functionality for such domains.
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 https://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 November 8, 2019.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
Kitterman Expires November 8, 2019 [Page 1]
Internet-Draft PSD DMARC May 2019
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://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
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology and Definitions . . . . . . . . . . . . . . . . . 4
2.1. Conventions Used in This Document . . . . . . . . . . . . 4
2.2. Public Suffix Domain (PSD) . . . . . . . . . . . . . . . 4
2.3. Longest PSD . . . . . . . . . . . . . . . . . . . . . . . 5
2.4. Public Suffix Operator (PSO) . . . . . . . . . . . . . . 5
2.5. PSO Controlled Domain Names . . . . . . . . . . . . . . . 5
2.6. Non-existent Domains . . . . . . . . . . . . . . . . . . 5
3. PSD DMARC Updates to DMARC Requirements . . . . . . . . . . . 5
3.1. General Updates . . . . . . . . . . . . . . . . . . . . . 5
3.2. Section 6.1 DMARC Policy Record . . . . . . . . . . . . . 5
3.3. Section 6.5. Domain Owner Actions . . . . . . . . . . . 5
3.4. Section 6.6.3. Policy Discovery . . . . . . . . . . . . 6
3.5. Section 7. DMARC Feedback . . . . . . . . . . . . . . . 6
4. Privacy Considerations . . . . . . . . . . . . . . . . . . . 6
4.1. Feedback leakage . . . . . . . . . . . . . . . . . . . . 6
5. Security Considerations . . . . . . . . . . . . . . . . . . . 7
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.1. Normative References . . . . . . . . . . . . . . . . . . 8
7.2. Informative References . . . . . . . . . . . . . . . . . 8
Appendix A. The Experiment . . . . . . . . . . . . . . . . . . . 9
Appendix B. DMARC PSD Registry Examples . . . . . . . . . . . . 10
B.1. DMARC PSD DNS Query Service . . . . . . . . . . . . . . . 10
B.2. DMARC Public Suffix Domain (PSD) Registry . . . . . . . . 10
Appendix C. Implementation . . . . . . . . . . . . . . . . . . . 11
C.1. Authheaders Module . . . . . . . . . . . . . . . . . . . 11
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 11
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 11
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