Microsoft has confirmed that its services have been restored following a major global outage that disrupted Outlook, Microsoft Teams and several Microsoft 365 applications, affecting businesses, government agencies and millions of users who depend on the company’s cloud-based technology.
The disruption began on Thursday, November 12, 2026, and continued into Friday, preventing users from accessing emails, sending messages, managing calendars and using essential workplace tools.
Outage-monitoring platform Downdetector received reports from users across more than 70 countries and territories, highlighting the widespread impact of the technical failure.
What Caused the Microsoft Outage?
According to Microsoft, the disruption was linked to problems arising from an earlier network-capacity upgrade and subsequent infrastructure issues.
The technical failure affected Exchange Online, the cloud-based system supporting Outlook email and calendar services. As servers became overwhelmed or unresponsive, users experienced connection failures and delays in sending and receiving messages.
Microsoft engineers worked to restore operations by adjusting network traffic, repairing affected infrastructure and processing a backlog of undelivered emails.
The company confirmed that there was no indication of a cyberattack or malicious activity behind the incident. Microsoft also ruled out artificial intelligence systems as the cause.
Businesses, Hospitals and Government Services Affected
The outage extended beyond personal email accounts, affecting organisations that rely heavily on Microsoft’s digital services for everyday operations.
In the United Kingdom, healthcare providers experienced difficulties processing prescriptions, while police services and court proceedings also faced disruptions.
Government offices, financial institutions and businesses across several countries reported problems with communication and administrative systems.
Some Microsoft Teams, SharePoint and Copilot features were also affected, particularly those connected to Exchange Online.
The incident demonstrated how a failure within one major technology provider can quickly interrupt essential services across multiple industries.
Latest Update: Are Microsoft Services Working Again?
As of November 15, 2026, Microsoft has confirmed that the affected services have been fully restored, following more than 24 hours of disruption.
The company has apologised to customers for the inconvenience and has been monitoring its systems to ensure that services remain stable.
Microsoft’s incident records show that the Exchange Online disruption was resolved on November 13, with subsequent updates confirming the completion of recovery efforts.
A Wake-Up Call for Global Digital Infrastructure
The outage has raised important questions about the world’s growing dependence on a small number of cloud technology providers.
With businesses, hospitals, schools and government institutions relying on Microsoft 365 for communication and daily operations, even temporary technical failures can have far-reaching consequences.
The incident highlights the importance of reliable backup systems, alternative communication methods and stronger digital infrastructure.
Although Microsoft’s services have returned to normal, the widespread disruption serves as a reminder that even the world’s largest technology companies are vulnerable to unexpected infrastructure failures.
For official service updates, users can visit the Microsoft Service Status page.
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