How to stop mail delivery failures being sent to sender?

Incoming email gets forwarded to a little php script I wrote.

Problem is, if there's any fatal errors in the script, or if I even set the file permissions wrong on the script, a mail delivery failure email gets sent to the sender of the email - even though their original email got through to me just fine.

I don't want to confuse the senders, and I also don't like the location of my script being visible in that mail delivery failure email.

Can this failure email be sent to me instead? Or at least, not be sent at all?

Thanks

Hello Jory,

There could be a lot of reasons for an even greater number of problems. If you post here mail logs or full email header (or open a ticket), we would be able to investigate the problem.

I think the problem in autoresponder or/and mailer-daemon of cPanel.