A SOC lead wants the on-call analysts emailed about high-severity incidents in Microsoft Defender XDR. Large incidents often collect dozens of alerts, and the analysts complain that they get a separate email every time a new alert joins an incident they already know about. What should the lead configure?
Choose one.
Incident email notification rules in Defender XDR are filtered by severity, source and device group, and can send one email per incident.
The requirement is high-severity incidents only, with no repeat email for each new alert in the same incident. Both are settings of an incident notification rule (Settings > Microsoft Defender XDR > Email notifications > Incidents): the Alert severity filter and 'Send only one notification per incident'. The portal-link option changes the email content, action rules cover a different event, and alert tuning hides or resolves alerts rather than controlling notifications.
- Identify the event to notify on: new or updated incidents.
- Pick the Incidents tab of Email notifications, not Actions or Threat analytics.
- Set Alert severity to High and select 'Send only one notification per incident'.
Exam tip: Too many incident emails: select 'Send only one notification per incident' on the incident notification rule.
Defender XDR Automation for SC-200: Email Notifications, Alert Tuning, Correlation, AIR and Attack Disruption — the lesson that teaches this.