This white paper describes why spam is a problem, the state of spam, essential features of an anti-spam solution, and the Brightmail solution for spam, such as extreme randomization, origin concealment, and filter evasion using HTML. Spammers continue to try and escape filtering, raising the stakes. This white paper describes how Brightmail's research and development groups continually adapt filtering software to challenge spammers and screen out their spam attempts. Brightmail's highly adaptive anti-spam arsenal incorporates a collection of powerful proactive and responsive filtering technologies backed by the industry's most comprehensive spam analysis infrastructure.
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