Milter-greylist

Hi all,

At home I run postfix as my MTA and I use 'gps' (the greylisting 
policy service) for greylisting. A feature that I really enjoy there 
which I think I could benefit with here at work is 'reverse 
greylisting' Full details are available on the gps web page:

http://mimo.gn.apc.org/gps/

Basically I've had some trouble with milter-greylist and Gmail's many 
email servers. I don't want to whitelist anything from gmail.com, but 
I think the idea of gps's reverse greylisting would be very helpful, 
especially considering the automatic fallback to weak greylisting 
(also explained on the page).

Can this be done with milter-greylist? If not, is it a feature worth 
requesting?

Collin