Outlook Rules Can Now Use 'External' Email Tag as a Condition

🚨 The Signal: Outlook Inbox Rules can now use the 'External' tag, set by ExternalInOutlook, as a condition. This allows automated handling of external emails across Outlook for Windows, Web, and Mac.

The Impact

Admins and End Users are affected, enabling improved email management and potential reduction in phishing risk.

• Admins: Can configure new rules to automatically manage external emails, enhancing security posture.
• End Users: Benefit from automated sorting and handling of external emails, improving awareness and reducing manual effort.
• Security Teams: Can leverage this feature to implement mail flow actions that reduce phishing exposure.

The Action

1. Identify scenarios where automated handling of external emails would benefit your organisation.
2. Create or modify Outlook Inbox Rules on Outlook for Windows, Outlook Web, or Outlook for Mac.
3. Utilise the 'External' tag as a condition within these rules to define specific actions (e.g., move to folder, flag).

Domain: Exchange · Impact: medium · Workload: Exchange Online · Essential Eight: User Application Hardening · ISM: ISM-0974