Comcast's engineers plan to try the innovative approach of identifying the zombie PCs and surreptitiously sending the subscriber's cable modem a new configuration routine that prevents outbound connections on port 25. Zombie-infected users won't even notice, the thinking goes, because most people use Comcast's mail servers for outgoing e-mail. Anyone wrongfully blocked can call and complain.
That's a clever idea, and it might even work. More importantly, it shows that the Internet's biggest spammer is finally trying imaginative ways to save our in-boxes from its subscribers
This is good news - it means that Comcast is going to try and solve the problem w/o punishing the innocent.