Offline store required (Exchange Vault Cache setting)
Controls whether Vault Cache can be enabled when no offline store is present.
Users have offline store (OST) files if Outlook Cached Exchange Mode is enabled. If a user does not have an OST file, Enterprise Vault cannot perform preemptive caching.
If there is no preemptive caching, there is an increased load on Vault Cache content synchronization for newly archived items. The increased load is only a consideration if the Vault Cache content strategy is Store all items.
Yes (default). An offline store is required for Vault Cache to be enabled.
No. An offline store is not required for Vault Cache to be enabled.