On 6/21/2020 7:57 AM, Matthäus Wander via dmarc-discuss wrote:
This sounds like the recipient is forwarding emails to Gmail. The DKIM signature is valid because it originates from your server.
Only if the forwarding process makes no changes that break the DKIM signature. In theory, that's easy. In practice, it's a very narrow category of forwarding behaviors that accomplish this.
d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net _______________________________________________ dmarc-discuss mailing list dmarc-discuss@dmarc.org http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
