On 31/03/2025 21:09, Michael Thomas wrote:
Is there actually evidence of this "punishment"? Filtering is notoriously opaque. Sounds more like paranoid behavior on the part of some deployments.
Yes.Rspamd for example is assigning the R_DKIM_REJECT symbol a weight of 1.0 (not 0.0 or 0.1, like it does for neutral results). Spamassassin uses a score of 0.1.
I have also seen a receiver quarantine all messages that have any DKIM errors... Obviously not sensible, but it does give a hint as to why some strip signatures.
smime.p7s
Description: S/MIME Cryptographic Signature
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