PidTagItemTemporaryflags Canonical Property
Applies to: Outlook 2013 | Outlook 2016
Contains a flag that indicates that a message has been read, but not marked as read.
This property is used in Outlook's Unread Messages search folder to keep track of which messages have been read without actually marking them as read, which would remove them from the folder. When the view changes this property is removed and the item is marked as read. This property will not synchronize to the Exchange Server.
Provides references to related Exchange Server protocol specifications.
Handles folder operations.
Provides data type definitions.
Contains definitions of properties listed as alternate names.