A Vault Cache is a local copy of a user's Enterprise Vault archive. The Vault Cache is maintained on the user's computer by the Enterprise Vault Outlook Add-In.
Virtual Vault integrates a view of the user's archive into the Outlook Navigation Pane. To users, a Virtual Vault looks like a mailbox or a personal folder, and it behaves in much the same way. For example, users can open archived items and drag and drop items to and from the Virtual Vault.
Figure: Example of a Virtual Vault shows a mailbox and a Virtual Vault in the Outlook Navigation Pane.
Figure: Vault Cache and Virtual Vault shows the relationship between Vault Cache and Virtual Vault, and Vault Cache synchronization with the online archive.
The user can synchronize archives other than their primary mailbox archive to the Vault Cache, if they have the necessary permissions. Each archive that is synchronized to a Vault Cache has its own Virtual Vault, if Virtual Vault is enabled. In Virtual Vault, access to archives other than the user's primary mailbox archive is read-only.
The actions that users can perform in Virtual Vault include the following: