Microsoft is investigating an ongoing issue preventing some customers from accessing their Exchange Online mailbox through Outlook on the web.

Although Microsoft claims that this outage only affects the North American region, user reports show that the issue may also affect users in South America (Brazil, Chile, Dominican Republic, and Colombia).

Some South American users also report having issues with the Outlook desktop app crashing when launched.

“The impact is specific to certain users in North America who attempt to access their Exchange Online mailbox using Outlook on the web,” Microsoft said in a new incident report added to the Center. administration.

“Affected users may experience an unexpected 500 error when accessing Outlook on the web. We are analyzing any recent deployments that may be contributing to the impact and continue to investigate service monitoring telemetry to locate the root cause of the error. ‘impact.”

Outlook on the web error
Outlook on the web (H) error

While Microsoft advised affected customers to visit the Service Health dashboard in the admin center under EX610644 for more information on this ongoing outage, customers reported that they were unable to log into the dashboard .

Earlier this month, Microsoft also admitted that some of its services, including the Azure portal, Outlook.comAnd OneDrivewere removed following DDoS attacks claimed by a threat actor known as Anonymous Sudan.

Outlook.com crash started monday evening (June 5), and the company has successfully resolved the underlying issue in the early hours of Wednesday.

“We are aware of these allegations and are investigating. We are taking the necessary steps to protect customers and ensure the stability of our services,” Microsoft told BleepingComputer at the time.

Updated June 27, 10:30 a.m. EDT: Microsoft has confirmed that connectivity issues are more widespread than originally reported.


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