US Patent & Trademark Office combats spam, viruses and dark traffic using Tumbleweed's award winning email security solution; Tumbleweed MailGate Integrated email security solution delivers significant IT cost reductions.

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M2 PRESSWIRE-9 August 2006-TUMBLEWEED COMMUNICATIONS: US Patent & Trademark Office combats spam, viruses and dark traffic using Tumbleweed's award winning email security solution; Tumbleweed MailGate Integrated email security solution delivers significant IT cost reductions(C)1994-2006 M2 COMMUNICATIONS LTD RDATE:09082006 Redwood City, CA - Tumbleweed Communications Corp.

(NASDAQ:TMWD), a leading provider of email security, file transfer security, and identity validation software and appliances, announced today that the U.S. Patent and Trademark Office (USPTO) has deployed Tumbleweed's MailGate products to block spam, viruses, phishing attacks, and "Dark Traffic," including email-based threats such as directory harvest attacks (DHA) and email denial of...