Have any of your teachers recently complained that they're not receiving enough e-mail? Probably not. According to some estimates, spam now accounts for at least 75 percent of all e-mail sent through Internet service providers, a number that's projected to grow exponentially in the next decade. Despite legislative efforts to impose harsher penalties on spammers, their ability to send e-mail from countries without spam laws or from individual computers they've hijacked makes spam an extremely difficult problem to contain.

By Wesley A. Fryer at Security Pipeline.

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