Summary of ANTI-spam techniques now available

FWIW, we have an anti-spam list on our site that is used by a
  lot of other ISPs on the net. It contains all of the known
  Cyberpromo domains and IP address blocks, and a ton of other
  stuff. You can get our active list anytime by sending an email
  message to:

  The list is ready to load into sendmail 8.8.6 using the filter rules
  available at:

  BTW, we will remove any entry in the file as long as the
  spammer agrees to sign and notarize a contract that establishes
  damages at $10,000 per incident if it happens again (and we WILL
  enforce the contract). If they are ISPs, I want to talk personally
  to the owner of the company. We don't put entries into the list
  lightly, and we don't remove them lightly either.

  Dave Stoddard
  US Net Incorporated