Milter-greylist

>subnetmatch (weak greylisting). Could you give us an example where
>reverse would be of use and a subnetmatch not?

Yup. Right now, I'm experiencing problems with emails from Gmail. In 
the logs, the from IPs come from:

wr-out-0506.google.com[64.233.184.228]
nz-out-0506.google.com[64.233.162.229]
mu-out-0910.google.com [209.85.134.188]
an-out-0708.google.com [209.85.132.251]

and so on. If I could use the reverse greylisting, which should 
truncate the names to google.com, they would all work nicely together.

Collin