Administrators must put the Exchange Server in maintenance mode while updating and making changes to the server to avoid data loss or other issues. If the changes or any security/cumulative updates are applied to the server without putting the server into maintenance mode, it can lead to database corruption or server failure.

In this article, we discuss the Exchange Maintenance Mode, its importance, and the steps to put the Exchange Server into maintenance mode. We also mention steps to disable maintenance mode once the server update or upgrade is completed.

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