Does the MAIL FROM (Sender header) contain the gmail address? Does the MIME From contain the gmail address?
Check the headers if the gmail address is SOMEWHERE there. Then you could put a rule to block such mails. Från: Tara Natanson via mailop <mailop@mailop.org> Skickat: den 24 oktober 2022 15:09 Till: mailop <mailop@mailop.org> Ämne: [mailop] How do I break Gmail forwarding? At some point someone set up a gmail address which forwards automatically to our postmaster address. Yes I realize someone had to have clicked something to allow this to happen (multiple people monitor the box). But I cannot undo it. I do not control the original mailbox the mail is being forwarded FROM. Anyone have any tricks I'm missing? Tara Natanson
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