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Authentication
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ARC

Authenticated Received Chain — preserves auth results across intermediaries.

Reading time:: 5 min
Difficulty:: Intermediate
Estimated duration:: 5 min
Prerequisites:: None
Last updated:: 2026-07-15
Author:: empire

Definition

Authenticated Received Chain — preserves auth results across intermediaries.

AuthenticationIdentity signals for email: SPF, DKIM, DMARC, and related controls.

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