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2.2.1.3 PidTagContentFilterSpamConfidenceLevel Property

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Type: PtypInteger32 ([MS-OXCDATA] section 2.11.1)

The PidTagContentFilterSpamConfidenceLevel property ([MS-OXPROPS] section 2.648) indicates the likelihood that the e-mail message is spam. The value MUST be in the range -1 to 9 (inclusive). The value -1 indicates that the message is not spam, and a value greater than -1 indicates that the message likely is spam. The greater the number, the higher the likelihood that the message is spam, with 9 indicating the highest likelihood. This property SHOULD be set by the server's spam filter before the Junk Email rule is executed.