John Levine wrote on 2021-05-02 22:30:
> It appears that Matthäus Wander <mail@wander.science> said:
>> envelope_to allows you to automatically correlate these reports and
>> reconstruct the forwarding path. This helps to identify the culprit who
>> is breaking DKIM signatures, especially with longer forwarding chains.
>> Without envelope_to, reconstructing the mail flow requires guessing and
>> manual work.
> 
> It is none of your business to whom I forward my mail.

I'm not quite sure what the problem is, but the solution may be to not
send DMARC reports and to not forward to systems that send DMARC reports.

It's worth noting that even without envelope_from and envelope_to
domains, RUA reports reveal forwarders.

Regards,
Matt

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