tmda cgi CONFIRM_ADDRESS issue for relay domain

Hi folks,

I've got a tmda qmail relay setup, but am finding that tmda-cgi sets  
up .tmda/config in a way that's generating the wrong reply-to/confirm  
address format.  Let's say the system hostname is "relay", and the  
domain name and system account (not virtual) are example.com.  The  
default skel/install/.tmda/config file has this entry:

CONFIRM_ADDRESS = "%(User)s@%(Domain)s"

The tmda-cgi installer ends up expanding the above to:

CONFIRM_ADDRESS = "example.com@relay"

in  ~example.com/.tmda/config.  What should this skel template line  
look like to get the desired syntax "[email protected]" where "user"  
is dynamic, since the system account "example.com" receives mail for  
the whole domain "example.com"?

Thanks!

Bill Shupp