If one does not want to receive any alert for a specific host or service - at least momentarily - one can squelch it.
alert thisis.down {
macro = host.mymacro
template = mytemplate
$notes = This alert will...
$metric = "avg:os.service.running{host=*,name=...
warn = min( a($metric, ...
squelch = host=sqldev01,flavor=amq
squelch = host=test01
}
This alert won't appear in the dashboard for service amq on host sqldev01, and won't appear at all for any service running on host test01.