MAPI Property: PidTagSentRepresentingEntryId

MAPI Properties

MAPI Property: PR_SENT_REPRESENTING_ENTRYID
Description: Contains the entry identifier for the messaging user represented by the sender.
Property ID: $0041
Property type: PT_BINARY
Area: Address

Remarks:
This property is one of the address properties for the messaging user being represented by the sender. When a client application sends a message on behalf of another client, it should set all the represented sender properties to the values for that client. A messaging user sending on its own behalf typically leaves the represented sender properties unset.
The outgoing transport provider must always leave this property unchanged if it has been set by the sending client. If it is unset, the transport provider should set it to PR_SENDER_ENTRYID (PidTagSenderEntryId) on the outbound copy of the message, and leave it unset on the local copy.