Outbound Spam

Anonymous Coward writes "It looks like a wholesale ISP who recently went out of business, Ziplink, was working on a solution to the problem of outbound spam. UnixReview has the article here. More information is available on the Ziplink web site here. It looks like they filed a patent on it too." The last paragraph of the article notes the free speech problems inherent in any system designed to limit who can communicate with whom.