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Microsoft 365 Services Experience Major Outage Affecting Thousands of Users

Microsoft Outlook and other 365 services faced significant outages, with over 35,000 complaints reported as the company worked to resolve the issues.

Overview

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On Saturday, thousands of Microsoft 365 customers reported issues accessing Outlook and related services, with complaints peaking at over 35,000 on Downdetector. Microsoft identified a potential cause and reverted code to alleviate the issues. The company confirmed that most services were recovering by afternoon, monitoring telemetry for any remaining impact. Similar outages have affected other tech companies recently, highlighting vulnerabilities in digital service reliability.

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Microsoft Outlook suffers global outage
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FAQ

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The outage affected several Microsoft 365 services, including Outlook, Teams, and Office 365.

Over 35,000 complaints were reported on Downdetector during the peak of the outage.

Microsoft identified a potential cause of the outage and reverted the suspected code to alleviate the impact. They also monitored telemetry for any remaining issues.

Yes, Microsoft experienced a similar outage in November affecting emails and the Teams app.

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