Dont send back attachments when rejecting e-mail

I have an Exim transport set up for ESET Mail Scanner which I have set up to reject e-mails with password protected files. When an e-mail is rejected the mailer-daemon sends back this message along with all the attachments in the e-mail. This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: admin@example.com local delivery failed
The problem here is if the e-mail is sent to another user within the same host, the e-mail will be stuck in the mail delivery queue. Eg: - user1@example.com sends a password protected file to user2@example.com - e-mail to user2@example.com is rejected and mailer-daemon sends reject message back to user1@example.com - since the reject e-mail contains the original attachments, reject message to user1@example.com is again rejected - now the reject message is frozen in the mail delivery queue Is it possible to configure Exim to not send back attachments with the reject message?