If your organization is configured for squawks or scheduled maintenance, you may subscribe to notifications. To get there select Resource Info >> Maintenance >> Maintenance Notifications as seen in the image below.
Next click the 'Add' link if you want to subscribe to additional events. The image below shows a user that has already subscribed to various events for all resources using email1.
If you clicked on the 'Add' link, you will see the following screen and can select the resource(s) and events for notification, as well as where to receive the notifications as seen in the image below.