On May 13th, 2020 at ~5:30pm UTC, Microsoft reported an outage preventing users from connecting to Exchange.
They reported some users may be receiving an ADSTS error when connecting to or using exchange and that they were actively working to resolve this issue
Several users expressed frustrations with the issue not being reported in the service health dashboard. Other users were concerned about the effect on productivity asking for updates on when the issue would be resolved and expressing frustrations for both users and their clients.
Roughly an hour later, Microsoft reported that Outlook on the web seemed to be primarily affected and suggested that user’s workaround the problem by using alternate methods. Soon after, they reported the issue was stemming from a recent update that was causing issues with authentication. They disabled the problematic update to mitigate impact and were monitoring the situation.
Finally, at 8:00pm UTC Microsoft reported that the change to disable the problematic update had been completed and confirmed that the issue was resolved.
In a cloud-world, outages are bound to happen. While Microsoft is responsible for restoring service during outages, IT needs to take ownership of their environment and user experience. It is crucial to have greater visibility into business impacts during a service outage the moment it happens.
ENow’s Office 365 Monitoring and Reporting solution enables IT Pros to pinpoint the exact services effected and root cause of the issues an organization is experiencing during a service outage by providing:
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