I decided to test the offline alerting today. I created an appropriate monitor policy and set it for 10 minutes agent offline; send email alert.
I shutdown a server and waited… and waited… 1/2 hour later the console showed it as offline… now 15 minutes later I have not received any alerts and the logs do not show the monitor as being tripped…
I must say, while I initially liked this I am running into ALOT of trouble setting up and having monitors work reliably… I appreciate this is free but reliability is huge for me.