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Resolved
Microsoft Exchange Online Outage Authentication Failures and Email Delays Impacting Thousands
Aug 31, 2026 at 6:59pm UTC
Affected services
Manually tracked item
Resolved
Sep 1, 2026 at 1:25am UTC
Service restored
Affected services
Manually tracked item
Created
Aug 31, 2026 at 6:59pm UTC
Microsoft Exchange Online Outage Authentication Failures and Email Delays Impacting Thousands
Affected services
Manually tracked item