Global Microsoft outage disrupts Outlook, Teams and Copilot
A global disruption to Microsoft 365 has affected Outlook, Teams, Copilot and other services on Friday 13 November 2026, with users in Singapore, Australia and other regions reporting difficulty accessing email and cloud tools.
Microsoft says the disruption has primarily affected Exchange Online, which supports organisational email. Some Teams features that depend on email and calendars, including meeting scheduling, have also been affected, while core Teams messaging and online meetings have remained largely functional.
The company says a process responsible for establishing secure connections became overwhelmed on affected servers. Some systems brought back online then stopped responding again when traffic returned, complicating restoration efforts. Engineers have been testing traffic restrictions, server restarts and configuration changes.
Downdetector recorded more than 130,000 reports of Outlook problems at the peak, although these user-submitted reports are not a count of everyone affected. The disruption has also affected some connectors linking Microsoft 365 with OpenAI and Anthropic services.
Microsoft has said there is no indication of malicious or cyber activity. Recovery has been gradual, and a confirmed time for full restoration had not been announced at the time of writing.
Sources: Microsoft service incident updates · BBC News · The Straits Times
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