Exchange Online Service Degradation - August 31, 2026
We are aware of an active Microsoft Exchange Online service incident (Issue ID: EX1464935) affecting email functionality.
What you may experience: Delays or failures when sending or receiving email Authentication errors when accessing Exchange Online Difficulty accessing the Exchange admin center Intermittent mailbox operation failures
Current Status: Microsoft has identified a common failure pattern related to authentication and protocol connectivity. They are actively analyzing service telemetry to determine the root cause and validate remediation options. This incident began at approximately 11:53 AM EDT today.
What to do: If you are experiencing any of the above, please be aware this is a known Microsoft issue and our team is monitoring it closely. No action is needed on your end at this time.
We will provide additional updates as information becomes available. If you have urgent email needs, please reach out to your support team directly. We appreciate your patience.
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