Microsoft 365 Alert : Service degradation – Exchange Online – Users may see delays or problems connecting to Exchange Online – RESOLVED

09/06/2022 10:46:00 AM (BST)

Microsoft Reference : EX390318  

Issue Status : RESOLVED

Issue Description : Users may see delays or problems connecting to Exchange Online

Scope of impact : Any user hosted on the affected infrastructure may have been impacted.

Final Update : 09/06/2022 10:46:00 AM – Microsoft rerouted connections to alternate infrastructure and monitored the environment to validate that service was restored.

Root cause : A portion of routing infrastructure was unexpectedly performing below the expected service threshold.

Next steps : Microsoft are continuing their analysis of the affected infrastructure to gain further insight into what triggered the initial impact which will help them in avoiding similar issues in the future.

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