Microsoft Outlook and Hotmail users in the UAE could experience difficulties accessing their email accounts, sending messages and receiving correspondence following a widespread outage affecting Microsoft’s services across several regions.
The disruption, which began on Thursday, November 12, has affected Microsoft’s Exchange Online email platform, with users reporting problems accessing their inboxes through desktop applications, web browsers and mobile devices.
The outage has also affected several other Microsoft services, including Microsoft Teams, Copilot, SharePoint and parts of the Microsoft 365 productivity suite, raising concerns among businesses and individuals who rely on the platforms for everyday communication and work.
Microsoft acknowledged the technical issue and said it was working to restore services after identifying problems with its infrastructure across multiple regions.
What caused the Microsoft Outlook and Hotmail outage?
According to Microsoft’s service updates, the disruption was linked to elevated infrastructure load across multiple regions.
However, the company clarified that the problem was not caused by an overall increase in user traffic. Instead, a large number of servers unexpectedly became unavailable, shifting additional workloads onto the remaining operational infrastructure.
This created further pressure on the affected systems, resulting in connectivity errors and preventing some users from accessing their Exchange Online mailboxes.
Microsoft also identified problems with automated server health checks. These checks are designed to monitor infrastructure and identify servers that are not functioning properly. Failures in this process contributed to servers being marked unavailable, further reducing the platform’s capacity.
The company investigated whether a component responsible for processing these health checks was contributing to the issue and began testing configuration changes to restore affected servers.
Which Microsoft services are affected?
Although Outlook and Exchange Online were among the primary services affected, the disruption extended to other Microsoft products that depend on the company’s email and cloud infrastructure.
The affected services and features include:
- Outlook and Hotmail: Users may experience difficulties opening inboxes, accessing messages, sending emails and receiving new correspondence.
- Microsoft Teams: Some users may encounter problems with calendars, meeting scheduling and other features connected to Exchange Online.
- Microsoft Copilot: Users may experience difficulties loading Copilot Chat or accessing work-related information such as emails, calendars and files.
- SharePoint Online: Some users may face connectivity issues with services linked to the wider Microsoft 365 infrastructure.
- Microsoft Planner and To Do: Certain planning and task-management functions may become unreliable.
- Microsoft 365 applications: Users may experience problems accessing recently used files and other connected features.
Microsoft clarified that not every feature within these applications was affected. Functions that do not depend on Exchange Online may continue operating normally.
How are UAE users affected?
The disruption could affect Outlook and Hotmail customers in the UAE, particularly those who depend on Microsoft’s cloud-based email services for personal and professional communication.
For businesses across Dubai, Abu Dhabi and other emirates, email interruptions could affect communication with clients, suppliers and colleagues, as well as the delivery of important documents and business correspondence.
Users may encounter login difficulties, loading errors, delayed email delivery or problems synchronising their inboxes across devices.
However, Microsoft has not published a separate breakdown of the number of affected users in the UAE. The extent of the local impact therefore remains unclear.
The disruption also highlights the dependence of businesses on cloud-based communication platforms, where technical problems affecting infrastructure in one or more regions can have consequences for customers across different markets.
What is Microsoft doing to restore services?
Microsoft said it had begun several recovery measures to reduce the impact and bring affected infrastructure back online.
These include redistributing Outlook connection traffic across its wider global infrastructure, moving traffic away from affected servers and restarting unavailable systems.
The company also introduced protective traffic-management measures to reduce pressure on the affected infrastructure.
In subsequent updates, Microsoft said some servers had been returned to service and were initially remaining stable. However, it found that certain servers became unresponsive again after receiving traffic.
To address this, the company began limiting specific types of traffic reaching affected infrastructure in selected locations. It was also rebuilding a portion of the affected servers using an earlier software configuration to determine whether this would prevent them from becoming unresponsive.
Microsoft said recovery could take place gradually as additional server capacity was restored and users’ email applications reconnected to the service.
What should Outlook and Hotmail users in the UAE do?
Users experiencing problems are advised to monitor Microsoft’s official service-status updates rather than repeatedly attempting to log in.
They can also take the following steps:
- Check Microsoft’s service health information for updates on the ongoing incident.
- Try accessing Outlook through a different browser or device once connectivity improves.
- Check whether their internet connection is working normally.
- Avoid repeatedly sending the same email, as messages may be delayed rather than immediately rejected.
- If using Outlook for business, contact the organisation’s IT administrator for information about alternative communication arrangements.
Users should also avoid sharing passwords or account details with anyone claiming to offer an immediate fix for the outage.
Where can users check the latest updates?
Microsoft provides service-health information through its official Microsoft 365 admin centre. Personal Outlook and Hotmail users can also monitor Microsoft’s service information and support channels.
The company has continued investigating the issue and working to restore normal operations.
For UAE users, the key concern remains when email access and other affected Microsoft 365 services will return to normal across all regions.
