On Wed 29/Jan/2025 15:41:06 +0100 ismael tanguy wrote:
On incoming layer, saying I create an Authentication-Results header and base a first ARC Set Then, email travels through infra and can be eventually forwarded to outside (redirection, responder, mailinglist).
This ARC set is noisy and useless, since you trust the internal flow. A single ARC set by each Administrative Domain is fine.
On outgoing layer, I create a second ARC Set. This ARC Set should check Authentication-Results header to create the AAR (ARC Authentication- Results). Can I use the previous Authentication-Results as I can trust the flow for incoming to outgoing, or should I create a new Authentication- Results on this?
I'd go by merging the existing, trusted Authentication-Results:, possibly many of them, and any Received-SPF: from the bastion host, perhaps eliminating comments.
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