Greetings. Issue 144 has been opened for the question of what to say about ARC (RFC 8617) in the context of indirect mail flows, a la Murray's example text from this post <https://mailarchive.ietf.org/arch/msg/dmarc/v5NMVIZqvRuEfopf7gc0Q1i4Ywo/>:
"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." https://github.com/ietf-wg-dmarc/draft-ietf-dmarc-dmarcbis/issues/144 -- Todd Herr | Technical Director, Standards & Ecosystem Email: todd.h...@valimail.com Phone: 703-220-4153 This email and all data transmitted with it contains confidential and/or proprietary information intended solely for the use of individual(s) authorized to receive it. If you are not an intended and authorized recipient you are hereby notified of any use, disclosure, copying or distribution of the information included in this transmission is prohibited and may be unlawful. Please immediately notify the sender by replying to this email and then delete it from your system.
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