Change in sender email address for Copilot emails

🚨 The Signal: Microsoft is changing the sender email address for Copilot educational and enablement emails to 'microsoftcopilotupdates@microsoft.com'. This impacts mail flow rules and safe sender configurations, requiring administrators to update allow lists to ensure continued delivery of Copilot communications.

The Impact

Security teams and administrators are affected by the need to update email allow lists, posing a low risk of legitimate Copilot emails being blocked.

• Security Teams: Risk of legitimate Copilot emails being quarantined or blocked if allow lists are not updated.
• Administrators: Required to update mail flow rules and safe sender lists to ensure Copilot communications reach users.
• End Users: Potential for delayed or missed Copilot educational content if emails are blocked.
• Organizations: Risk of reduced Copilot adoption and understanding if enablement emails are not delivered.

The Action

1. Review existing Exchange Online mail flow rules for sender-based filtering.
2. Update allow lists and safe sender configurations to include 'microsoftcopilotupdates@microsoft.com'.
3. Communicate the sender change to users who manage their own safe sender lists.
4. Monitor mail flow logs for blocked emails from the new Copilot sender address.

Domain: Exchange · Impact: low · Workload: Exchange Online