SPF will always fail. OTOH, when the mailing list doesn't do dumb stuff like mut... | Hacker News

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		emersion on Aug 16, 2021 \| parent \| context \| favorite \| on: Email Authenticity 101: DKIM, Dmarc, and SPF SPF will always fail. OTOH, when the mailing list doesn't do dumb stuff like mutating the subject or the body, DKIM will succeed.

remram on Aug 16, 2021 [–]

SPF really shouldn't fail. SPF checks use the envelope address, not the From header. See also https://en.wikipedia.org/wiki/Sender_Rewriting_Scheme

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