For IRC servers running BOPM and mail servers, I've found: http://
www.sectoor.de/tor.php to be useful.
On Sat, 17 Jun 2006, Chris Kuethe wrote:
As for an attempt at a technical control, maybe set up a box with Tor
on it, get a list of exit servers and null-route them automagically.
The TOR abuse FAQ is here:
They provide a script to track TOR exit nodes as well: