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Spam Microsoft

Microsoft Researching Anti-Spam Technique 660

Posted by michael from the penny-for-your-thoughts dept.
Tim C writes "Microsoft's Research group are working on a technique to combat spam. Dubbed the 'Penny Black project', it involves making email senders perform a computation taking around 10 seconds, which their recipients can then check for. This delay would limit bulk emailing speeds to around 8000 a day, meaning that to spam all of those 'fresh, guaranteed 25 million addresses' would take approximately 8.5 years." We've reported on this before.
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Microsoft Researching Anti-Spam Technique

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