I need a solution
Wondering if I alter the Synchronize archive types back to Default Mailbox.
Then the user mailbx would show on the vault cache in outlook but they can still go and manually enter any extra vaults they wish to see through the vault cache properties page.
The reason I'm asking is the customer has mailbox permissions so messed up that people are seeing in archive explorer about 50+ mailboxes and it's slowing down the sync process