| EX1056704 | Exchange Online | Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the Exchange admin center (EAC) |
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| Status | serviceDegradation |
|---|---|
| Classification | advisory |
| User Impact | Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the EAC. |
| Last Updated | 04/25/2025 01:49:25 |
| Start Time | 04/02/2025 04:29:00 |
| End Time | |
| Latest Message | Title: Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the Exchange admin center (EAC)
User impact: Users may see a 503 error when starting Outlook (classic) in online mode or utilizing the EAC. More info: Some users intermittently may be unable to start Outlook (classic) when in working online mode and encounter the following error: “HTTP 503 Service Unavailable.” Additionally, when attempting to complete operations in the Exchange admin center (EAC), admins are returned a “503 Service Unavailable” error. Current status: We’ve identified high latency and timeout errors on a portion of Exchange Online infrastructure responsible for EAC and Outlook (classic) functionality. We’re further investigating the source of the latency and timeout errors to help with the root cause investigation. Scope of impact: Any user who attempts to start Outlook (classic) when working in online mode or utilize the EAC may be impacted by this event. Next update by: Friday, April 25, 2025, at 4:00 AM UTC |