QMail and failure notices

How can I prevent QMail from sending failure notices for domains that aren't even on my server at all. I noticed that QMail sends a lot of failure notices all the time and most of them have some random domains in "To:" field.

Is there even a way to do it?

If not, I thought I could write a perl script to parse the queue and delete the emails that are not from my server. And run it via crontab every few minutes/hours. Is that a good idea?

 

 

 

 

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