Experimental Domain-Based Message Authentication, Reporting, and Conformance Extension for Public Suffix Domains
RFC 9091, “Experimental Domain-Based Message Authentication, Reporting, and Conformance Extension for Public Suffix Domains”, is an Experimental document published in July 2021 by S. Kitterman, T. Wicinski. It has been obsoleted by RFC 9989 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
Domain-based Message Authentication, Reporting, and Conformance (DMARC), defined in RFC 7489, permits a domain-controlling organization to express domain-level policies and preferences for message validation, disposition, and reporting, which a mail-receiving organization can use to improve mail handling.
DMARC distinguishes the portion of a name that is a Public Suffix Domain (PSD), below which Organizational Domain names are created. The basic DMARC capability allows Organizational Domains to specify policies that apply to their subdomains, but it does not give that capability to PSDs. This document describes an extension to DMARC to fully enable DMARC functionality for PSDs.
Some implementations of DMARC consider a PSD to be ineligible for DMARC enforcement. This specification addresses that case.
What “Experimental” means
Describes a specification that is part of a research or development effort, published so the community can gain experience with it.
The canonical text of RFC 9091 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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- RFC 9088 Signaling Entropy Label Capability and Entropy Readable Label Depth Using IS-IS
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- RFC 9087 Segment Routing Centralized BGP Egress Peer Engineering
- RFC 9095 Extensible Provisioning Protocol Domain Name Mapping Extension for Strict Bundling Registration