On Fri 25/Oct/2024 21:05:19 +0200 Murray S. Kucherawy wrote:
If bringing humans into the loop of determining the value of ARC or DKIM results was a useful and scalable exercise, I think one of the large operators would've done it by now.
I think large operators do base their anti-spam and reputation systems on human responses. The reasons why they don't use that resource for ARC might be twofold:
1) Forwarding, including mailing lists, is such a small fraction of their email traffic that they don't care.
2) There is no established way for sender and receiver to communicate, hence receivers cannot get a referral that would be meaningful to the user when asked to identify a mail flow.
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