Structured ARF fields
02The augmented failure-report format includes alignment and authentication-specific fields.
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DIAGRAM§ 4 ↗
RFC 9991 · § 4EXAMPLE
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03
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Keep structured report fields distinct from optional original-message data.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
Identity-Alignment is required.
- Identity-Alignment is required.
- Aligned DKIM failures require DKIM-Domain, DKIM-Identity, and DKIM-Selector.
- An aligned SPF failure requires SPF-DNS; other fields have their specified requirement levels.
Examples are illustrative. Read the exact policy, reporting, and privacy rules in the linked current specification.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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