How to auto copy another Exchange user 2003 on all sent email silently

I need to have all email sent by a user on a domain (Windows Server 2003 R2 Standard, Exchange Server 2003) to be silently also copied to another user on the local Exhange.

The manager does not want the employee to know they are receeiving all sent emails from this user in this case.  I need to do this in Exchange Server and not Outlook 2007 since user can access email from OWA etc. to send email.

For inbound email:
I already setup the incoming email to be forwarded and deliver to user mail box using.
Acitive Directory -> Users -> "The user changing" -> Exchange General tab -> Delivery options -> Forward Adrees -> Change to "Forward to "Other user to receive incoming mail and also deliver to current mailbox.

Thanks