can somebody comment in what context null-senders and so bounces and probably autorepsonders are blocked by "DKIM_ADSP_NXDOMAIN,USER_IN_BLACKLIST"
DKIM_ADSP_NXDOMAIN,USER_IN_BLACKLIST from=<> to=<u...@example.com> 3jC2XD1j8Cz1y: milter-reject: END-OF-MESSAGEa customer sends out his yearly members-invitation nad i see some bounces / autrorepsonders pass through and some are blocked with the above tags, at least one from his own outgoing mainserver
what i don't completly understand is the "DKIM_ADSP_NXDOMAIN" since in case of NXDOMAIN the message trigger the response could not have been delivered and how the "USER_IN_BLACKLIST" comes with a empty sender
not that i am against block some amount of backscatters, i just want to understand the conditions
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