Authenticated Received Chain
ID: authenticated-received-chain
Authenticated Received Chain (ARC) is an email authentication protocol designed to help ensure the integrity and authenticity of email messages as they pass through multiple intermediaries (such as forwarding services or email gateways). It is especially useful in situations where messages are forwarded or modified, which can often lead to issues with existing authentication methods like SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail).
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