On 31/03/2025 17:53, Michael Thomas wrote:
It was always a bad idea to strip signatures, and continues to be. The text of DKIM couldn't be more clear that a broken signature is equivalent to no signature and broken signatures have always had forensic value.

Unfortunately in reality broken signatures are sometimes treated worse than no signature at all.

Though I don't want to start a discussion on if it should be done or what the results are or what the results should be. I was just stating that it is being done and the decision between new headers or a new version will (or will not) affect how some implementations behave, for better or for worse.

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature

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