2.2.1.29 PidTagTnefCorrelationKey Property

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

The PidTagTnefCorrelationKey property ([MS-OXPROPS] section 2.1048) contains a value that correlates a Transport Neutral Encapsulation Format (TNEF) attachment with a message. This property determines whether or not an inbound TNEF file belongs to the message it is attached to. It is used primarily by transport providers and gateways.