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Hi,
I would like to confirm whether the following behavior is expected in Plesk.
Environment:
Plesk version: 18.0.74
Plesk mail server (Postfix)
“Enable DMARC to check incoming mail” is enabled
Domain abc.com has DMARC: "v=DMARC1; p=reject;"
We received the following spoofed inbound email...
On a Plesk mail server with DMARC enabled, we observed that locally generated non-delivery notifications (DSNs) are being rejected when the domain uses a strict DMARC policy:
v=DMARC1; p=reject; sp=reject;
When an outgoing email fails, Postfix generates a local DSN:
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