Milter-greylist

I want to set up milter-greylist as an  opt-in service. I've got it 
working, but I think I'm doing it by standing it on it's head.

milter-greylist is run with the -T option.

greylist conf contains the list of those who want greylisting:

acl greylist rcpt name@...


This results in LOTS of messages to maillog telling me that it's not 
greylisting most of the mail. Correct, but so what?

Can I run it without -T (i.e., in normal mode) with something like

acl whitelist rcpt *@...
acl greylist rcpt name@...


-- 

    Steve