Microsoft 365 Alert: Service degradation – Exchange Online – Some users may notice external emails not being automatically flagged as external emails – RESOLVED

Announcements Aftab Alam

21-10-2021 11:59:00 AM (BST)

Issue reported: 20/10/2021 02:35:00 PM

Microsoft Reference : EX292874

NHSmail Reference : INC24622130

Issue Status: RESTORED

Issue Description: Users may notice external emails not being automatically flagged as external emails

More info: Affected users would have seen that external messages didn’t include the banner that states: “This sender was from outside your organization”.

Scope of impact: Impact is specific to users who are served through the affected infrastructure.

Final Update – 22/10/2021 08:27:00 AM: Microsoft completed deploying the override with the correct settings. After checking telemetry and reaching out to affected users, they confirmed that impact has been successfully remediated. It may take up to 24 hours for the override to fully propagate, and although our data supports that this issue is resolved for all users, should users encounter this issue again then they may need to wait until Friday, October 22, 2021, at 4:33 PM UTC for the issue to be resolved.