Muted devices should already be suppressed from new alerts by being on that alert suppression table, you shouldn't have to add additional logic. Are you saying that your muted nodes are still triggering alerts?
Well… I just muted a server, rebooted it, and looked at “Orion.AlertSuppression” to verify it was there and there wasn’t a reboot alert created for it after it came back up.. Go figure.. My guess is that the servers that our apps team had told us about were not muted, or they unmuted between it coming up and the poll for the last reboot entry.
I will keep watch and post back to this thread if I run into it.
Thank you for replying though.