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For every message:
- Mailshell's LiveFeed reputation system
provides real-time analysis from Mailshell's global data
network.
- The four spam identification engines
utilize more than one million reputation queries, pattern
matches or rules to identify spam with an incredibly high
accuracy rate, and a near-zero false positive rate.
- Results are combined using SpamScore,
a proprietary Bayesian statistical formula, into one final
spam probability score.
For each message, Mailshell SpamCompiler applies
checks of its four spam detection engines:
- SpamBulk
Engine: Is the message or similar messages
sent in bulk?
- SpamRepute
Engine: Real-time reputation data indicates whether or not most people want the message?
- SpamContent
Engine: Will most people consider the message offensive?
- SpamTricks
Engine: Is the message formatted or sent to bypass
anti-spam reputation checks or to be economical for spammers?
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