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.
We"re investigating an issue with accessing some web-based Microsoft 365 services when using the latest version of Google Chrome. We"re currently taking action to address the problem. More details can be found in https://t.co/uSHwRmXFJZ or under MO1281730 in the admin center.
— Microsoft 365 Status (@MSFT365Status) April 16, 2026
We"ve discovered some users may experience intermittent sign‑in failures, including “too many requests” errors, or unexpected sign‑outs. We"re analyzing service telemetry further to identify any potential next steps and mitigation actions. For more information, please visit…
— Microsoft 365 Status (@MSFT365Status) April 27, 2026
Upon reviewing service telemetry further, we"ve identified an unexpected increase in error rates affecting two separate error scenarios. We suspect this may be contributing to creating impact, and we"re conducting additional analysis to confirm this. For more information, please…
— Microsoft 365 Status (@MSFT365Status) April 27, 2026
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.
We"ve identified a recent service change that is potentially contributing to impact and we"re testing a roll back to determine if this remediates impact. For more information, please visit https://t.co/Htn4qQDPCR.
— Microsoft 365 Status (@MSFT365Status) April 27, 2026
We"ve completed the roll back and are monitoring service health while we continue to look for additional mitigation paths. For more information, please visit https://t.co/Htn4qQDPCR.
— Microsoft 365 Status (@MSFT365Status) April 27, 2026
System telemetry indicates that the service is recovering following the configuration roll back. Impacted iOS users on iPhones will need to follow additional steps to resolve the issue. For the list of steps and more information, please visit https://t.co/Htn4qQDPCR.
— Microsoft 365 Status (@MSFT365Status) April 27, 2026
We’ve confirmed service health has returned to normal and reporting users that have completed the additional steps are able to access Outlook and Hotmail. For the list of mitigation steps and more information, please review the attached screenshot or visit… pic.twitter.com/YHp86VTOYD
— Microsoft 365 Status (@MSFT365Status) April 27, 2026
For now the issue has been closed though.