Late on Monday, Microsoft Corp confirmed that a recent change it introduced likely caused a major outage, affecting users’ access to multiple Microsoft 365 services, including Outlook.com and Microsoft Teams. The developer of Windows and Office software said it did not “observe an increase in successful connections” even after it rolled back the change to mitigate the impact.
Microsoft said on its status page, “We’re pursuing mitigation steps for this issue. In parallel, we’re rerouting traffic to alternate systems to provide further relief to the affected users.”
Microsoft also said they were working to evaluate other solutions while they investigate the root cause of the outage.
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