2.2.2.1 PidTagMessageClass Property

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

The PidTagMessageClass property ([MS-OXCMSG] section 2.2.1.3) contains a Message object class name. For report messages, the property is set to the value in the form "REPORT.X.<receipt-type>", where X is the original message class name, such as "IPM.NOTE" for an E-mail object, and <receipt-type> is one of the following receipt types:

Therefore, the report messages of the IPM.NOTE message class name are as listed in the following table.

Report type

Message class name (PtypString)

Read receipt

REPORT.IPM.NOTE.IPNRN

Non-read receipt

REPORT.IPM.NOTE.IPNNRN

Delivery receipt

REPORT.IPM.NOTE.DR

Non-delivery report

REPORT.IPM.NOTE.NDR

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