Milter-greylist

> That list is incomplete.  Please have a look at this list:

I am not looking for the complete list.

> However, blocking hole /8 networks is not a good idea in
> general.  Those networks that you mentioned above are
> handled by LACNIC, so most of their blocks are assigned
> to South American and Latin American countries (Mexico,
> Argentina, Colombia, Brazil etc.).  You're definitely
> *NOT* blocking Brazil only, but a whole continent.

I blocked these subnets based on last 3 months' logs. *All* of them are from Brasil with absolutely no single connection to my mail server from anywhere else. Besides, I have no business from anywhere in Latin America in general. Therefore I can afford to block /8 instead of blocking 500 different class Cs that keep changing all the time.

I didn't go ahead and block all of LACNIC or all of Brasil IPs (if they have any other) -- rather, I scanned my own mail logs and deduced it would be best to block these 4.

I was at such a point where it would be best to turn off the mail server altogether and let users find other means of communication... So I don give a ****** **** about someone being blocked out of the 5 million connections coming to my server from latin america.