The MailboxScope element identifies whether a search or fetch for a conversation should span either the primary mailbox, archive mailbox, or both the primary and archive mailbox.
Last modified: October 17, 2012
Applies to: Exchange Online | Exchange Server 2013 | Office 365
The text value of the MailboxScope element is the scope for finding or getting items in a conversation across either primary mailboxes, archive mailboxes, or both primary and archive mailboxes. A text value of PrimaryOnly indicates a scope that targets the primary mailbox for a user. A text value of ArchiveOnly indicates a scope that targets the archive mailbox for a user. A text value of All indicates a scope that targets both the primary mailbox and archive mailbox.