Szymon Malinowski via Postfix-users:
> You see the point? We got stuck in a loop of sending DMARC reports which are
> beeing bounced because of unknown user.
>
> Is there any way to prevent such situations?
Many decennia ago, in RFC 821, and perhaps earlier, the solution
to avoid email error notification loops was to send such messages
with a NULL envelope sender address.
Postfix still does that to this day when it generates a notification.
I can only wish thet the rest of the email ecosystem was as thoughtful.
Wietse
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