Anyway, what you are doing here is penalizing all users of that company's copper wires. No amount of monopoly breakup legislation will do any good if you penalize based on the wrong part of the physical infrastructure. http://en.wikipedia.org/wiki/Common_carrier http://en.wikipedia.org/wiki/Network_neutrality
> The rule is buggy -- it's looking at all the > received headers, even the ones before the relay. Therefore you want to score on who is handing their SMTP etc. Not on who provides the copper wires to their house... rating on that part of the infrastructure will spoil your results.