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ComputerWire: IT Industry Intelligence

BrightMail Inc yesterday released version 4.0 of its spam filtering services to enterprises and service providers, saying it has added features aimed at recognizing sophisticated spam that was previously undetectable.

Anti-Spam 4.0 has a feature BrightMail calls BrightSig, which identifies "polymorphic spam attacks". These are attacks where essentially the same email is sent, but with subtle differences in punctuation or spacing designed to circumvent signature-based spam filters.

The new version also has an upgraded installation and configuration tool, runs on Solaris and Windows 2000 operating systems, and interoperates with enterprise messaging platforms including Exchange and Lotus Notes.

The Anti-Spam service uses an email gateway filter that enforces rules created daily by BrightMail's team of developers. The company identifies unsolicited commercial email from 100 million decoy email accounts that are seeded to attract spam, and is used by six of the top 10 US ISPs.

© ComputerWire

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