| Platform SDK: MAPI |
The PR_ORIGIN_CHECK property contains a binary verification value enabling a delivery report recipient to verify the origin of the original message.
| Header file: | MAPITAGS.H |
| May be exposed by: | Message objects |
| Identifier: | 0x0027 |
| Property type: | PT_BINARY |
| Property tag: | 0x00270102 |
| Corresponding X.400 attribute: | MH_T_ORIGIN_CHECK |
The PR_ORIGIN_CHECK property provides a means for a third party, such as a message transfer agent (MTA) or a messaging user receiving a delivery report, to verify the submitted message's origin. If present on a received message, this property should be copied onto any delivery report generated in response to the message.
PR_ORIGIN_CHECK replaces several obsolete properties supplied in pre-release versions of MAPI, including PR_MESSAGE_ORIGIN_AUTHENTICATION_CHECK, PR_PROBE_SUBMISSION_AUTHENTICATION_CHECK, and PR_REPORT_ORIGIN_AUTHENTICATION_CHECK.