2.2.8.9 PidTagMessageClass Property
Type: PtypString ([MS-OXCDATA] section 2.11.1)
The PidTagMessageClass property ([MS-OXPROPS] section 2.788) SHOULD<29> be set to "IPM.ConversationAction".
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Type: PtypString ([MS-OXCDATA] section 2.11.1)
The PidTagMessageClass property ([MS-OXPROPS] section 2.788) SHOULD<29> be set to "IPM.ConversationAction".