What caused Outlook outage? Microsoft reacts amid email failures, authentication issues
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September 1, 2026
Microsoft is currently looking into a significant service disruption that is leading to authentication problems and delays or failures in email delivery for Exchange Online users. Microsoft is addressing a significant outage affecting Exchange Online,…
Microsoft 365 outage update: When will Outlook, Teams and other services be back up? Company probes Exchange issues
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September 1, 2026
Microsoft users are facing widespread issues with Outlook and other Microsoft 365 services as the company investigates problems with Exchange Online. Microsoft 365 services down for thousands in the US. (UnSplash) When did the outage begin? According to…