When Always-On Monitoring sends email notifications, it does so using email server configurations that it obtains from Enterprise Manager during the synchronization step. For Always-On Monitoring to function properly, email servers must be configured in Enterprise Manager before performing an Always-On Monitoring synchronization.

If changes to the email server configurations are made in Enterprise Manager, Always-On Monitoring must be synchronized again to retrieve the updated email server configuration. See Updating Always-On Monitoring “Running an Incremental Synchronization Manually” for additional details.