On Tue, Jun 16, 2009 at 09:04:50PM -0000, John Levine wrote: > Not that I've ever seen. Nobody else has the breadth of data that > Spamhaus does. > > I've been using it for ages and based on zero complaints, it's never > blocked anything that any of my users wanted.
I strongly concur with John: using the Spamhaus DROP list is incredibly effective not just against spam but against many other forms of abuse. I use a script to update various routers/firewalls/mail systems once a week, and there have been no problems of any kind with it. ---Rsk