Undelivered Mail Returned to Sender

This is the server1.v1502.vanager.de program at host emailpoint.de.

I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the message returned below.

The server1.v1502.vanager.de program

<******@***.***>: Name service
error for ***.***: Host not found

Weiss jemand, wo und wie man diese Standard-Fehlermeldung von Postfix editieren kann;

Hab schon in fast allen Dateien geschaut...

Nein, nein, nein!
Nicht editieren!
Das hat schon einen Sinn das es so ist.
Sonst werden die Meldungen oft als Spam intepretiert.