Disable local Exchange Server mailboxes
Platí pro: Windows SBS 2008
You cannot uninstall Exchange Server if mailboxes are enabled. You must complete the following procedure to disable mailboxes.
To disable mailboxes
Start the Exchange Management Console.
In the console tree, expand Recipient Configuration, and then click Mailbox.
For each mailbox in the Mailbox pane, right-click the mailbox, and then click Disable.