The PR_REGISTERED_MAIL_TYPE property contains the type of registration used for physical delivery of a message.
| Header file: | MAPITAGS.H |
| May be exposed by: | Message objects |
| Identifier: | 0x0C16 |
| Property type: | PT_LONG |
| Property tag: | 0x0C160003 |
| Corresponding X.400 attribute: | MH_T_REGISTRATION |
Physical Delivery Properties, PR_X400_CONTENT_TYPE