- Open Exchange Management Console
- Expand Microsoft Exchange On-Premises and then expand OrganizationConfiguration and then Select Mailbox
- On the Database Management tab, Right-click the mailbox database that you want to work with, and then click Properties.
- On the Maintenance tab, un-check the Don't mount this database at startup check box.
- Click OK to save the setting.
- Close Exchange Management Console
Article ID: 2608489 - Last Review: Sep 20, 2011 - Revision: 1