The PR_ORIGINATOR_AND_DL_EXPANSION_HISTORY property contains information about a message originator and a distribution list expansion history.
| Header file: | MAPITAGS.H | 
| May be exposed by: | Message objects | 
| Identifier: | 0x1002 | 
| Property type: | PT_BINARY | 
| Property tag: | 0x10020102 | 
| Corresponding X.400 attribute: | MH_T_ORIG_AND_EXPANSION_HISTORY | 
The PR_ORIGINATOR_AND_DL_EXPANSION_HISTORY property is used in report generation.