Press Releases

Mailshell Engine Nearly Perfect in VB Spam Comparative Tests

SAN FRANCISCO - September 22, 2011 - Mailshell is among the world's most accurate spam filters, according to the new VBSpam Comparative Test, the industry's premier independent testing program. Mailshell accurately blocked 99.89% of spam, without a single false positive (0.0% false positive rate). 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 rely on "Powered by Mailshell" filtering engines for Internet security. (Read the Report)

The two-week test, orchestrated in Virus Bulletin's U.K.-based testing labs, included more than ten thousand email messages per day; all participating products received the same email stream, thereby ensuring a fair and accurate test. The test also included a stream of newsletters, frequently the source of errors among spam filters; Mailshell scored perfectly, without a single error, among newsletters as well.

According to the VB Spam report on Mailshell, "The product's performance was very good. Mailshell blocked an impressive 99.89% of spam. That, of course, is only half of the picture but the other half was equally good, if not better: no legitimate emails were missed, and no newsletters were missed either."

"Numbers don't lie," said Eytan Urbas, vice president at Mailshell. "Exceptional results from independent lab tests separate the best providers from the pretenders."

Mailshell's Anti-Spam SDK provides complete and consistently accurate protection against email fraud, phishing and spam. The solution includes a local SDK, as well as access to Mailshell LiveFeed, a real-time data service that quantifies traffic reputation via advanced statistical models. Unlike other reputation services that provide only a binary 'good' or 'bad' rating, LiveFeed provides granular trust ratings with automated adjustment over time as reputations change. By focusing reputation on mathematical models, rather than simply an 'IP black list' approach, LiveFeed provides more accurate, highly scalable detection. Mailshell has more than 60 LiveFeed data centers in more than 20 countries on six continents for maximum availability and minimum latency.

Mailshell's SDKs are available on more than 10 operating systems and 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. In addition to SDKs for email protection, Mailshell offers a DNS SDK for secure, encrypted DNS protection and the LiveFeed SDK for URL filtering and content categorization.

About Mailshell: Mailshell ( is the leading provider of Internet security engines for OEMs. Mailshell's software helps its global network OEM partners, including McAfee, CA, Check Point, ESET, AVG, Avast, NETGEAR, Webroot and others, generate new revenue, up-sell existing products to new customers and minimize related engineering and support costs. 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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