DMARC Aggregate Reporting
draft-ietf-dmarc-aggregate-reporting-00
DMARC A. Brotman (ed)
Internet-Draft Comcast, Inc.
Obsoletes: 7489 (if approved) November 11, 2020
Intended status: Standards Track
Expires: May 15, 2021
DMARC Aggregate Reporting
draft-ietf-dmarc-aggregate-reporting-00
Abstract
DMARC allows for domain holders to request aggregate reports from
receivers. This report is an XML document, and contains extensible
elements that allow for other types of data to be specified later.
The aggregate reports can be submitted to the domain holder's
specified destination as supported by the receiver.
This document (along with others) obsoletes RFC7489.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on May 15, 2021.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 2
2. DMARC Feedback . . . . . . . . . . . . . . . . . . . . . . . 2
2.1. Verifying External Destinations . . . . . . . . . . . . . 3
2.2. Aggregate Reports . . . . . . . . . . . . . . . . . . . . 3
2.2.1. Transport . . . . . . . . . . . . . . . . . . . . . . 5
3. Security Considerations . . . . . . . . . . . . . . . . . . . 8
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
5. Appendix A. DMARC XML Schema . . . . . . . . . . . . . . . . 8
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1. Normative References . . . . . . . . . . . . . . . . . . 13
6.2. Informative References . . . . . . . . . . . . . . . . . 14
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction
A key component of DMARC is the ability for domain holders to request
that receivers provide various types of reports. These reports allow
domain holders to have insight into which IP addresses are sending on
their behalf, and some insight into whether or not the volume may be
legitimate. These reports expose information relating to the DMARC
policy, as well as the outcome of SPF [RFC7208] & DKIM [RFC6376]
validation.
1.1. Terminology
The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
document, are to be interpreted as described in [RFC2119].
2. DMARC Feedback
Providing Domain Owners with visibility into how Mail Receivers
implement and enforce the DMARC mechanism in the form of feedback is
critical to establishing and maintaining accurate authentication
deployments. When Domain Owners can see what effect their policies
and practices are having, they are better willing and able to use
quarantine and reject policies.
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2.1. Verifying External Destinations
[<https://trac.ietf.org/trac/dmarc/ticket/76>]
2.2. Aggregate Reports
The DMARC aggregate feedback report is designed to provide Domain
Owners with precise insight into:
o authentication results,
o corrective action that needs to be taken by Domain Owners, and
o the effect of Domain Owner DMARC policy on email streams processed
by Mail Receivers.
Aggregate DMARC feedback provides visibility into real-world email
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