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ietf-wg-dmarc / draft-ietf-dmarc-dmarcbis

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DMARCbis WGLC - What To Say About ARC (RFC 8617) #144

Closed toddherr closed 4 months ago

toddherr commented 5 months ago

Should ARC be mentioned in DMARCbis when speaking of indirect mail flows?

For example:

"One possible mitigation to problem X is [ARC], which provides for a mechanism to demonstrate 'chain-of-custody' of a message. However, use of ARC is nascent, as is industry experience with it in connection with DMARC."

toddherr commented 4 months ago

Added the following text to the end of Interoperability Considerations in rev -31:

As a final note, one possible mitigation to the problems caused by Domain Owners publishing p=reject when they should not or Mail Receivers rejecting messages solely on the basis of a p=reject policy is the Autheticated Received Chain (ARC) protocol described in [@RFC8617]. However, as of this writing, use of ARC is nascent, as is industry experience with it in connection with DMARC.