Campaigners against spam on the internet have won a major battle against the world's second largest internet service provider.
US firm Savvis was allegedly earning up to $2 million a month from 148 of the world's worst spammers, a former employee had claimed.
Following talks with anti-spam groups, Savvis has now promised to get rid of the spammers using its network.
The move has been welcomed by anti-spam campaigners and organisations.
Savvis has a low profile publicly, but on the net they are a big player.
The company describes itself as "the network that powers Wall Street", because it provides the network connections for the New York Stock Exchange, as well as many other major financial institutions, including 75 of the world's top 100 banks.
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News source: BBC News, Technology