Microsoft 365 Alert – Service Degradation – Exchange Online – Users may be unable to receive desktop notifications for incoming email from Outlook on the web – RESOLVED

Announcements Sourav Nandi

13/07/2023 08:35:00 AM (GMT)

NHSmail Reference : INC36972459

Microsoft Reference : EX638591

Issue Status : RESOLVED

Issue Description : Users may be unable to receive desktop notifications for incoming email from Outlook on the web.

More info : Users may be unable to receive desktop notifications for incoming email from Outlook on the web.

Final Update : 19/07/2023 09:04:00 AM – Microsoft completed deployment of the fix to the affected environments and after monitoring the service, they have verified that this fix has successfully remediated the issue in full.

Scope of impact : Any user receiving email through Outlook on the web may be impacted.

Root cause : A recent change to tokens leveraged by the web push notification API to fulfill desktop notification functionality omitted the Outlook on the web app ID, which hindered tokens from being recognized and processed by authenticating infrastructure as expected and subsequently led to impact.

Next steps : Microsoft are investigating how the recent change to tokens leveraged by the web push notification API to fulfill desktop notification functionality omitted the Outlook on the web app ID to prevent this problem from happening again.