FYI -the above code was edited to include:
-bounce messages are captured in the local INBOX (this prevents email looping when procmail forwards)
-the visibility of PROCMAIL in the useraccounts panel
-forcing "procmail" to be enabled despite the selection (local, forward, both)
-the visibility of the USERPANEL-FORWARDING to always show for users without the USERPANEL-PROCMAIL panel showing (procmail confuses end-users)