Hi Brent, When OME is not able to reach a server during status poll, OME automatically generates an internal alert to tell that the System is down. All you have to do is go to Preferences page >> Alerts settings and make sure  Enable internal connection state Alerts. Point to note, it is enabled by default.
Can OME be configured to send an email alert when a managed device is off line for a certain period of time or number of polling attempts? We have branch offices that have lost building power recently and we would like to be alerted when these managed servers are off line. Thanks, Brent  
Alerts when a managed device is offline?