The most common issue around Exchange User arise when they Can't Access mailbox Created with Exchange 2016/13/10 or below version. While accessing the Mail and other details via Outlook and OWA (Outlook Web App).
Why User Cannot Access Mailbox In Exchange 2010/2013/2016
- Mostly Error interrupts users from accessing their mailboxes either via OWA and ActiveSync, only if the Exchange database is totally disconnected dismounted, or database is separated from the Exchange server. Well, it is a common error message for Exchange users and there may several causes for this issue such as Exchange database corruption, Exchange database is disconnected and so forth.
- Even when the Directory Service Access (DSAccess) tries to find the disconnected mailbox in the Active Directory, it returns the same error. If the GUID of mailbox contains the client-side cache and after that user tries to connect with server database yet, the server DB GUID cache has been updated. It disconnects the Exchange Database and results in DatabaseGUIDNotFound Error.
