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Microsoft shares some details on Outlook iOS outage that makes the iPhone app unusable [Update]

Microsoft has confirmed that Outlook on iOS has gone down as it have been hit by an outage. The company has shared some details.

Neowin · with 3 comments

Broken Outlook logo

A few hours ago, Microsoft confirmed that some of the Microsoft 365 services like Outlook are still currently down. The company confirmed this via its official Microsoft 365 Status X handle. The issue is fairly widespread as many users online are complaining of the issue.

Over the last few hours Microsoft has shared details about its own investigation.

The official Microsoft 365 Service Health Status website notes "service degradation" as it says the following:

"User impact: Users may experience intermittent issues signing in to Outlook.com.
More info: Users may experience intermittent sign‑in failures, including “too many requests” errors or unexpected sign‑outs.

Current status: We're reverting a recently introduced change to determine if this action provides relief from impact upon completion. In parallel, we're continuing to analyze customer reports, and we're closely monitoring service telemetry to identify our next steps and potential mitigation actions. "

We will update the post if Microsoft shares additional details.

Update, April 27 2025, 21.00 GMT: Microsoft confirmed a recent change caused the issue. As such it performed a rollback to address the problem. However, there may still be another bug throwing up similar symptoms.

For now the issue has been closed though.

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