We had setup CAPM Notifications to send traps when "Management Lost" is occurring for the device in Data Collector;
however , CAPM is not generating those traps.
Could see them in Events tab of the devices however:
Release : 3.x
Component : IM Reporting / Admin / Configuration
Threshold traps have a severity as you have defined in the threshold rule.
But system events like management lost and polling disabled do not have a severity.
In the notifier rule, under conditions, either select all severities, or include unknown so that events with no severity will be picked up: