[exim] Stop all bounce notification emails.

Hello,

I am managing an email server (exim 4.69) which sends solicited bulk emails
to our customers. Some of our customers have changed email address and so
the message bounces.

Whenever a bounce occurs, my email server sends a bounce notification email
out. However, since I am parsing the log frequently and monitoring bounce
emails myself, I have no need for these bounce notification emails--indeed
they waste up valuable resources when I need to get emails out.

What is the quickest and easiest way to prevent exim from sending bounce
notifications?

Thank you