The increasing volume of spam email messages is driving users to look for alternative media such as instant messaging and low cost VoIP calls, analyst firm IDC predicts in a new study.

"Spam volumes are growing faster than expected due to the success of image-based spam in bypassing antispam filters and of email sender identity spoofing in getting higher response rates," said Mark Levitt, program vice president for IDC's Collaborative Computing and Enterprise Workplace research.

At vnunet.

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