Have a situation where a mailbox is showing up in everyone's Enterprise Vault Search.  When you expanded it, two mail folders were visible.  I discovered why, in checking the permissions of those folders in Outlook, someone changed the "Default" permission group to "Editor" instead of "None".  I went ahead and set those permissions to "None" as they should be, and now those two folders are no longer showing up for everyone, but the mailbox is still listed.  

Anyone know how I can remove this?  When you try to expand it there are no folders.  But it's still there.  Mailbox/AD/Vault permissions are normal.  I tried restarting EV services, running all tasks (Provisioning, Archiving, etc).  Possibly disabling the mailbox for archiving, then enabling it again??