Check Replication: Run Get-MailboxDatabaseCopyStatus to confirm all databases are "Healthy."
Allow database activation: Set-MailboxServer -Identity -DatabaseCopyAutoActivationPolicy Unrestricted exchange server in maintenance mode
Enable transport services: Set-ServerComponentState -Identity -Component HubTransport -State Active -Requester Maintenance when an administrator utters the phrase
In the bustling digital corridor of an enterprise, few servers are as vital—or as missed—as Microsoft Exchange. It is the circulatory system for communication, pumping emails, calendars, and contacts to every corner of the organization. So, when an administrator utters the phrase, “We’re putting Exchange into maintenance mode,” it can send a quiet ripple of anxiety through the user base. “We’re putting Exchange into maintenance mode