| Platform SDK: Exchange Server |
The PR_EXPIRY_UNITS property contains the time unit to be used in calculating the time for a message to expire.
| Header file: | EDKMDB.H |
| Applies to: | Message objects (information store objects) |
| Identifier: | 0x3fee |
| Property type: | PT_LONG |
| Access: | Read/write |
The PR_EXPIRY_UNITS property is used by the information store to record Send Option dialog settings. The information in this and the MAPI PR_EXPIRY_TIME property is used by the information store to calculate when the message expires. These properties are only sent with messages that contain a deferred action.
The information store uses the PR_EXPIRY_NUMBER PR_EXPIRY_UNITS properties and the MAPI PR_CLIENT_SUBMIT_TIME property to calculate the value of the PR_EXPIRY_TIME property. PR_CLIENT_SUBMIT_TIME and PR_EXPIRY_TIME are standard MAPI properties.
For example:
PR_EXPIRY_TIME = PR_CLIENT_SUBMIT_TIME + (PR_EXPIRY_UNITS + PR_EXPIRY_NUMBER)