Milter-greylist

Alan,

> is interesting.  It does seem sensible but I wouldn't want to get into 
> maintaining a list of ip's by hand.  So could this be done automatically? 

I currently maintain a whitelist for my own use, a couple of other 
people use it and provide info for it.

http://www.ntjl.net/whitelist/

It's fairly straight forward to write something up to work with whatever 
version/install you have.

I'm happy to maintain the list, if anyone has any ranges they have good 
reason to whitelist please email the address listed on the site.

Regards,

Joseph