Outlook: New Outlook for Windows for GCC-H and DoD

🚨 The Signal: The new Outlook for Windows is now available for US Government clouds (GCC-H and DoD). This expands the modern client experience to highly regulated environments, impacting email and calendar security posture.

The Impact

Security teams and administrators in GCC-H/DoD are affected, requiring review of client security configurations to mitigate potential risks.

  • Security teams: Must review new client security settings for compliance.
  • Administrators: Need to manage deployment and configuration of the new client.
  • End-users: Will experience a new interface, requiring awareness of security features.
  • Compliance officers: Must ensure the new client adheres to regulatory requirements.

The Action

  1. Review Microsoft documentation for security baselines of the new Outlook client.
  2. Assess current email security policies for compatibility with the new client.
  3. Configure client-side security settings, including data loss prevention (DLP) policies.
  4. Plan for user training on new security features and best practices.
  5. Monitor client usage and security logs for anomalies post-deployment.

Domain: M365-Apps · Impact: medium · Workload: M365 Apps