[Exim] Copying reject messages to postmaster

I have been receiving numerous messages where an IP is given in the HELO
portion of the SMTP handshake.
The IP address doesn't have a reverse lookup causing our server to reject
the message.
I tried to tailor the reject message using:
prohibition_message = ${lookup{$prohibition_reason}lsearch\
{/etc/mail/reject.messages}{$value}}
I want to make sure the custom prohibition/reject messages are working.
How do I send copies of the reject messages to the postmaster?

Owen C. Creger CCNA
Information Systems Security Engineer
Creative Solutions Inc.
7322 Newman Blvd.
Dexter, MI 48130
email: ocreger@???
ph: 734-426-5860 ex. 3787
fax: 734-426-5946
cell: 734-223-6270