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Spammers are increasingly using 'out of office' features in web-based email to relay junk messages, security experts warned today.
McAfee Avert Labs reported several instances where spammers set up web-based email accounts and configured auto responders with spam messages.
The scammers then send email with fake 'from' addresses to their newly created web mail accounts. The 'from' addresses subsequently receive the spam 'out of office' notices. McAfee noted that, while this may sound like a convoluted way to send spam, it allows the fraudsters to trick spam filters. An automatic reply from a well-known web-based email service will look legitimate to many spam filtering tools.
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