3.2.4.2 Modifying the Junk Email Rule

To store user preferences regarding how spam filtering occurs for a mailbox, the client modifies the Junk Email rule created on the server. The rule itself is executed only on the server.

Clients interpret properties on the message and data in the PidTagExtendedRuleMessageCondition property ([MS-OXORULE] section 2.2.4.1.10) of the Junk Email rule as specifying preferences and lists of data that are used to control the client spam filter and user interface elements.

The rule contains a PidTagContentFilterSpamConfidenceLevel property (section 2.2.1.3) that can be used to determine the user preference for how aggressively spam is filtered.

The rule contains various lists of SMTP e-mail addresses that are stored in the PidTagExtendedRuleMessageCondition property, as specified in section 2.2.4. The client MUST format the Junk Email rule as specified in section 3.1.4.1.