3.1.4.1.6 Setting a Sender Flag
The client sets the following properties to flag a Draft Message object with a sender flag.<18>
PidTagSwappedToDoData property (section 2.2.1.7)—acts as the secondary flag storage location
PidTagSwappedToDoStore property (section 2.2.1.8)—triggers post-transmit processing, as specified in section 3.1.4.3
The recipient flag properties are stored in the primary flag storage location, as specified in section 3.1.4.1.5, whereas the sender flag properties are stored in the secondary flag storage location (the PidTagSwappedToDoData property).