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'Powered by Mailshell' Filters Dominate Newest VBSpam Test

SAN FRANCISCO, February 8, 2013 - 'Powered by Mailshell' spam filters claimed four of the top nine spots in the newest VBSpam Comparative Test, the industry's leading independent testing program. Mailshell is the leading provider of Internet security engines for OEMs, including anti-spam, anti-phishing, DNS Security and URL filtering. Thousands of companies and millions of consumers worldwide rely on "Powered by Mailshell" filtering engines for Internet security.

Mailshell's filter accurately detected 99.84% of spam without any false positives, beating IBM, Symantec, McAfee, Fortinet, Sophos, Halon Security (which uses the Commtouch engine) and nearly all others, in a competition of more than 20 of the world's leading spam filters.

Three other 'Powered by Mailshell' filters finished with nearly identical results: Eset, Netmail Secure and GFI each finished the test with detection rates within 0.05% of Mailshell. Each of the four solutions did not block a single piece of legitimate email. The four companies' 0.0% false positive rate was also better than IBM, McAfee, Sophos and nearly all others tested.

"Mailshell and its partners have four solutions in this test, posting nearly identical outstanding results," said Eytan Urbas, vice president at Mailshell. "This level of consistently excellent detection is among the primary reasons so many other vendors replace their old solutions with 'Powered by Mailshell' filters."

The VBSpam tests are administered by Virus Bulletin, and benchmark leading vendors' filters using identical streams of email. The test ran for 16 consecutive days, from December 22nd through January 7th. In this most recent test, Mailshell correctly identified 64,780 out 64,884 spam emails, for a 99.84% detection rate. Among legitimate emails, Mailshell did not block any of the 9,073 legitimate messages. The test results are available at:

Mailshell's Anti-Spam SDK provides complete and consistently accurate protection against email fraud, phishing and spam. The solution includes a locally installed SDK, as well as access to Mailshell LiveFeed, a real-time cloud-based data service that quantifies traffic reputation via advanced statistical models. The company has more than 60 LiveFeed data centers in more than 20 countries on six continents for maximum availability and minimum latency. By focusing reputation on mathematical models, rather than simply an 'IP black list' approach, LiveFeed provides more accurate, highly scalable detection.

Mailshell's SDKs require as little as 32KB of code on the device. Mailshell's SDKs are embedded into security, networking and messaging products including software appliances, SaaS platforms, gateway security software, desktop security suites, UTM, mobile devices, wireless access points, firewalls, modems, and other low memory devices. More than ten of the premier filters for Windows desktops integrate the Mailshell engine.

About Mailshell: Mailshell ( is the leading provider of Internet security engines for OEMs. Mailshell's software helps its global network OEM partners generate new revenue, up-sell existing products to new customers and minimize related engineering and support costs. In addition to SDKs for email protection, Mailshell offers an Anti-Phishing SDK for web and mobile security, a DNS SDK for secure, encrypted DNS protection and the LiveFeed SDK for URL filtering and content categorization. The company's mission is to organize information so people get only what they want, and only when, where and how they want it. Follow Mailshell on Twitter at

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