{
  "name": "Exchange bounce rate",
  "description": "Mail is bouncing above the usual rate: a directory out of step with reality, or a distribution list pointing at deleted mailboxes",
  "query": "service=exchange event_kind=bounce earliest=-15m | stats count",
  "query_language": "spl",
  "condition_type": "threshold",
  "eval_interval_seconds": 300,
  "for_minutes": 0,
  "notification_target_id": "__TARGET_OPS__",
  "enabled": true,
  "comparator": "gt",
  "threshold_value": 20
}