Microsoft Restores Most Services After Global Outage Disrupts Outlook, Teams and Microsoft 365

Microsoft has made significant progress in restoring its services following a major global outage that disrupted millions of users across businesses, government agencies and other organisations.

The disruption affected several Microsoft products, including Outlook, Microsoft Teams, Microsoft 365, SharePoint, OneDrive and the Copilot AI assistant. The outage began on November 12, 2026, and continued into the following day, creating problems for users across multiple countries.

Microsoft has apologised for the disruption and confirmed that its recovery efforts have resulted in broad improvements. However, some customers may still experience intermittent access issues and delayed email delivery while systems return to normal.

Which Microsoft Services Were Affected?

The outage affected several services used by individuals and organisations for everyday communication and business operations.

Major affected products included:

• Microsoft Outlook: Users experienced problems accessing inboxes, sending emails and receiving messages.
• Microsoft Teams: Some users faced difficulties with chats, meetings and collaboration features.
• Microsoft 365: Access to cloud-based productivity applications was disrupted.
• Microsoft Copilot: The AI assistant experienced availability issues.
• SharePoint and OneDrive: Some users encountered problems accessing cloud-based files and collaboration services.

Because several products rely on shared Microsoft infrastructure, problems in one part of the system affected multiple services simultaneously.

What Caused the Microsoft Global Outage?

Microsoft has attributed the incident to a technical problem involving a network capacity upgrade and a subsequent network change.

The company said the issue caused parts of its infrastructure to become unavailable, affecting services that depend on shared network and email systems.

Microsoft clarified that the incident was not caused by a cyberattack or malicious activity. It also said the disruption was not related to artificial intelligence or AI agents.

The company is continuing to investigate the underlying technical failure and has promised to publish a detailed post-incident report.

Microsoft Confirms Broad Recovery Across Regions

Microsoft’s recovery efforts have gradually improved service availability across North America, Europe and Asia-Pacific.

The company said email queues had been significantly reduced and were approaching normal levels. It also reported improvements in sign-in access and server stability.

However, recovery has not necessarily been identical for every customer. Some organisations may continue experiencing delayed messages or intermittent access while Microsoft monitors infrastructure performance and clears remaining processing backlogs.

The company has taken a gradual approach to restoring services, validating stability as additional infrastructure returns to operation.

Millions of Users and Businesses Experienced Disruption

The outage affected users across at least 74 countries and territories, according to outage-tracking reports cited by the Associated Press.

Downdetector recorded a sharp increase in complaints, with Outlook-related reports reaching more than 2,000 times their normal level.

The disruption affected a wide range of organisations, including:

• Businesses relying on Microsoft 365 for daily communication.
• Government departments using Outlook and Teams.
• Healthcare organisations experiencing email and administrative interruptions.
• Police and public services facing difficulties with online communication.
• Airlines and other customer-service operations using Microsoft email systems.

In India, Air India said its flight operations were unaffected, although it temporarily rerouted email services. IndiGo also reported disruption to email support while keeping other customer-service channels operational.

Microsoft Apologises to Customers

Microsoft acknowledged the inconvenience caused to customers and business partners.

The company said it understood the importance of the services organisations depend on and apologised for the disruption.

It also stated that engineers had addressed the underlying issue and were continuing to restore service to remaining affected customers and regions.

Microsoft said it would provide a full post-incident report after completing its review.

Why Did One Technical Problem Affect So Many Services?

The incident has renewed questions about the dependence of businesses and public institutions on a small number of major cloud technology providers.

Although Outlook, Teams, Copilot and SharePoint appear to be separate products, they rely on interconnected infrastructure.

When a shared component becomes unavailable, several applications can experience problems at the same time.

Technology experts have warned that organisations should not depend entirely on a single platform for critical communication and business operations.

The outage highlights the importance of maintaining alternative communication channels, independent backups and tested business continuity plans.

What Should Microsoft 365 Users Do Now?

As services recover, users should take a few practical precautions:

• Check Outlook and Microsoft 365 service availability before assuming all systems are fully restored.
• Verify whether delayed emails have been delivered.
• Avoid repeatedly resending important messages without checking their delivery status.
• Keep alternative communication channels available for urgent business requirements.
• Monitor official Microsoft service-health updates for further developments.
• Be cautious of fraudulent emails or messages claiming to offer emergency Microsoft outage support.

Businesses should also review their backup communication arrangements to reduce disruption during future cloud-service incidents.

What Happens Next?

Microsoft’s immediate priority is to maintain service stability and ensure that all remaining affected infrastructure returns to normal operation.

The company is also expected to investigate why the network change triggered such widespread disruption and what additional safeguards can prevent a similar incident.

The outage serves as a reminder that even the world’s largest technology companies can experience infrastructure failures with consequences across global business operations.

Although Microsoft’s recovery efforts have restored broad availability, the company will need to demonstrate that its systems are stable and that customers can rely on its services without further interruptions.