Spam is more than just an annoying, time-wasting nuisance that decreases business productivity, fills up server space and clogs bandwidth. It also includes attempted fraud on a grand scale via "phishing" emails, false requests purportedly from companies such as Ebay or Paypal, asking for credit card information.
Almost all email users worldwide receive spam, and despite all attempts to defeat it, this marketing method seems to be increasing. According to a study by IDC, in 2004 38% of the 31 billion emails sent every day in North America were spam, up from 24% in 2002. In August 2004, MessageLabs found that 84.2% of all emails scanned were spam. In a weeklong study conducted by the University of Texas, 56.2% of messages filtered through Brightmail were flagged as View the rest of this article
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