As the global Microsoft outage enters its second day on Friday millions of commercial users worldwide face severe disruptions across productivity and email applications.
The technical failure began on Thursday afternoon, severely crippling Exchange Online, the foundational engine powering Microsoft (NASDAQ: MSFT) email infrastructure, according to Fox Business. The disruption affected Microsoft 365 commercial subscriptions, as reported by CTV News. Organizations from Asia to North America experienced widespread communication failures, impacting hospitals, government services, and major corporate operations.
Microsoft 365 Global Outage Metrics
| Metric / Indicator | Reported Figure | Source Context |
|---|---|---|
| Paid M365 Commercial Subscriptions | 450 Million+ | Reported by CTV News |
| Fortune 500 Copilot Adoption | > 90% | Reported by The Guardian |
| Email Timeout Window Extension | 48 Hours | Implemented by Microsoft (Fox Business) |
Global Institutional and Healthcare Disruption
In Canada, healthcare networks bore an immediate brunt of the infrastructure failure. Unity Health Toronto declared a “code grey” on Thursday after staff lost the ability to send and receive emails, though patient care remained unaffected, CBC reported. Similar email disruptions hit Toronto’s Sunnybrook Health Sciences Centre, the University Health Network, Montreal’s CHUM, and the Jewish General Hospital, according to CBC.
We’ve monitored the status of the changes applied to improve serviceability and confirmed they're not taking as expected. We’re identifying alternate workstreams that can be applied to increase capacity in the face of sustained traffic management imbalances. More info under…
Public sector and transportation networks also stalled globally. British police forces were unable to receive crime reports online and urged citizens to use emergency phone lines, CTV News noted. Via Rail warned customers that trip notification emails were failing, while Singapore’s Government Technology Agency and the Philippines’ Supreme Court confirmed that government email services were offline.
“They believe that they are dealing in some ways (with something) similar to what we saw with respect to CrowdStrike where there is an update that has gone awry,” Alastair Burke told reporters in Sydney. Microsoft subsequently ruled out foul play or malicious activity, stating it had no evidence linking the incident to a cyber-attack.
Microsoft appears to be making some progress with its huge Exchange / Outlook outage. Mailbox access is gradually coming back online for some customers. Sources tell me the outage has been linked to Azure VNet config changes pic.twitter.com/wNPtH2JTdw
Microsoft Implements Measured Approach to Repair Infrastructure
“a measured approach to identify and repair affected infrastructure,” Microsoft said it was taking to address the failure, utilizing alternative workstreams to address sustained traffic management imbalances. The tech giant confirmed that its email timeout window was extended to 48 hours to protect delayed messages from bouncing back to senders during the recovery phase.
By Friday morning, recovery progress was observed across Europe and the Asia Pacific region, with Japan remaining comparatively more stable, according to Microsoft. North American services also showed incremental improvement, though the company cautioned users that intermittent issues would persist as recovery actions continued across the infrastructure.
The cascading software failure extended beyond traditional office software into artificial intelligence integrations. OpenAI and Anthropic each reported problems connecting with Microsoft 365 tools, showing how outages affect users as more people use artificial intelligence platforms to interact with other companies' software. As Microsoft’s suite of workplace products remained severely disrupted, affected users faced lingering issues across SharePoint Online, Teams, and Copilot AI integrations.
Disclaimer: The information provided in this article is for educational and informational purposes only and does not constitute financial advice.
We're investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas. More details can be found in the Microsoft 365 admin center under EX1550543.
Earlier coverage: Global Microsoft Outage Disrupts Outlook, Teams, and Copilot Services
More on Microsoft
Following the global Microsoft outage you may find it difficult to contact me or my office today, we cannot access email and casework responses may be delayed. Phones are working but will be heavily overloaded. We will do our best but bare with us! https://t.co/irWhGvsqBo
