Mail error Reject::ORIG::DNS_MF:
Mail error Reject::ORIG::DNS_MF:
If the mail server is rejecting emails with the error above, it means that the sender mailbox or domains don't exist. You can disable this on the qmail server. Below are the steps:-
Change the value of the mfdnscheck file in /var/qmail/control/options from 1 to 0.
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