Microsoft tests fix for latest hours-long Outlook outage
In Brief Posted: 11:56 AM PDT · August 31, 2026 Image Credits:Jaap Arriens/NurPhoto / Getty Images Snow day? Microsoft on Monday confirmed a widespread, multi-hour outage affecting Outlook users, leading to email delays and failures, authentication issues, and other problems.
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Key Facts
- Fact 1: In Brief Posted: 11:56 AM PDT · August 31, 2026 Image Credits:Jaap Arriens/NurPhoto / Getty Images Snow day?
- Fact 2: We’re reviewing service telemetry and diagnostic data to isolate the source of the issue,” Microsoft wrote at 12:43 p.m.
- Fact 3: Once we've confirmed this resolves impact, we'll apply… — Microsoft 365 Status (@MSFT365Status) August 31, 2026 We're continuing to fine-tune our remediation strategy as our internal tests progress.
- Fact 4: For more information regarding other impact scenarios, please see:… — Microsoft 365 Status (@MSFT365Status) August 31, 2026 The outage is another reminder of how much of the business world today still runs on email, and particularly Outlook and Exchange.
In Brief Posted: 11:56 AM PDT · August 31, 2026 Image Credits:Jaap Arriens/NurPhoto / Getty Images Snow day? Microsoft on Monday confirmed a widespread, multi-hour outage affecting Outlook users, leading to email delays and failures, authentication issues, and other problems.
In a post on X, Microsoft reported the issue was impacting its Exchange Online service, its cloud-hosted platform for business email, calendar, contacts, and tasks, and then said it had identified the problem. “We’ve confirmed that users may experience degraded functionality with various Exchange Online functionalities. We’re reviewing service telemetry and diagnostic data to isolate the source of the issue,” Microsoft wrote at 12:43 p.m.
(Original synthesis pending human/AI review — generated by the stub provider by selecting real sentences from the source material, not by writing new analysis or commentary.)
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