The PR_X400_DEFERRED_DELIVERY_CANCEL property was originally meant to contain TRUE if the message transfer system (MTS) allows X.400 deferred delivery cancellation.
| Header file: | MAPITAGS.H |
| Identifier: | 0x3E09 |
| Property type: | PT_BOOLEAN |
| Property tag: | 0x3E09000B |
Do not use this property. It is not supported in MAPI 1.0.
Unused Properties, PR_X400_CONTENT_TYPE