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Microsoft 365 and Office | Clipchamp | For home
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Hello, @Manal Nakli
What you are experiencing is currently linked to an active Microsoft 365 service incident tracked under ID EX1550543.
Microsoft initially reported intermittent connectivity issues affecting Exchange Online mailboxes in the Americas, and has since updated the advisory to confirm that the issue may impact general Microsoft 365 service connectivity across any region.
What this means for your environment:
- Affected Services: Primarily Exchange Online / Outlook (desktop client, Outlook on the web, and mobile apps), along with potential authentication or connection timeouts across broader Microsoft 365 services (such as Teams, SharePoint/OneDrive, or the Microsoft 365 Admin Center) that rely on shared front-end connectivity infrastructure.
Action Required: No configuration changes are needed on your tenant or client devices. Microsoft engineering teams are actively working on mitigation.
How to track live status:
Open the Microsoft 365 Admin Center using a Global Admin or Service Support Admin account.
Navigate to Health > Service health.
Search for incident ID EX1550543 for real-time mitigation progress and root cause updates.(You can also follow official updates via @MSFT365Status on X).
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