ResolutionBounce message example:
Hi. This is the qmail-send program at hostname.tld.
This error message means that Qmail was not able to deliver the bounce message. In another words, the message was sent with the user@sender_domain email address in the "From" field to nonexistent mailbox user@destination_domain, and the message bounced back; however, user@sender_domain mailbox does not exist. It is not recommended to send bounce messages, but to instead reject mail for nonexistent users. This can be set for every domain on the Domain->Mail->Preferences page in the Parallels Plesk Panel CP.
To change this for multiple domains:
In PP 9 and earlier versions use the group operations feature.
In PP 10 and higher versions perform the changes in customer' service plans.