Microsoft reports persistent service interruptions for Outlook and Intune

Outages

Microsoft reports persistent service interruptions for Outlook and Intune

Microsoft is currently addressing a widespread service failure affecting email access and device management tools. The company has confirmed that initial attempts to resolve the issue have not yet restored full service.

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Outages
13 November 2026

What this means for your business

Business owners may find staff unable to send or receive emails via Outlook or manage company laptops through Intune. We recommend monitoring the official Microsoft Service Health dashboard and avoiding unnecessary configuration changes until the service is stable.

Current Status of Microsoft 365 Services

Microsoft has confirmed a significant service disruption affecting multiple components of its 365 suite. The primary services impacted are Outlook, the standard business email client, and Intune, a tool used by administrators to manage and secure company mobile phones and laptops.

Reports indicate that users are experiencing connection failures when trying to access their mailboxes. Additionally, IT administrators may be unable to deploy new software or enforce security policies on remote devices due to the Intune failure. Microsoft has stated that their initial remediation efforts have not yet been successful, and the service remains unstable for a large number of users.

Technical Details and Resolution Efforts

The cause of the outage has not been publicly identified. Microsoft engineers are currently investigating infrastructure changes that may have triggered the disruption. In a recent update, the company noted that the actions taken so far have not provided the anticipated relief, suggesting that the root cause is complex.

For UK businesses, this means that communication may be limited to alternative platforms until the mail servers are restored. If your business relies on Intune for onboarding new staff, you may experience delays in setting up new equipment.

Guidance for Business Owners

During a service failure of this scale, there is very little that can be done at a local level. We advise against attempting to troubleshoot individual computers or reset passwords, as the problem exists within Microsoft's data centres rather than on your office network.

Ark Assist is monitoring the situation and will provide updates as Microsoft shares more information. We recommend that staff use offline versions of documents where possible and prepare for potential delays in digital communication. You can check the status of your specific tenancy through the Microsoft 365 Admin Center if you have access, though this page may also load slowly during the outage.

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