We got situation here that in a group all of sudden none of the Nodes are sending any mails configured contacts when nodes are down
If i try to add a new node to same group it sends the Node down notification but not working for list of nodes configured earlier .
i dont find any outages scheduled .
Please help me in finding the issue .
Try looking in nmis.log for escalate and mail related messages.
It's also useful to manually run an escalate with a debug in order to see what's happing. Timing this with an event will be more revealing. In the following example examine the generated file for mail related information.