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Outlook is down: Microsoft web outage hits users worldwide


Outlook online users around the world are reporting problems accessing the Microsoft service, adding to the woes Office 365 users experienced earlier this week. 

Microsoft at 9am CET, 3am ET, confirmed that users are having issues accessing Exchange Online accounts via Outlook on the web. 

SEE: Office 365: A guide for tech and business leaders (free PDF) (TechRepublic download)

Microsoft initially said users in India are the primary group impacted. However, the company later confirmed on the Microsoft 365 Status Twitter account that the issue is affecting users worldwide. 

Downloaddetector currently indicates the worst impacted regions include the UK, France, Germany, Netherlands, Belgium, Norway, Sweden, and India. There are also multiple user reports on Twitter from users in Europe who’ve been unable to access Outlook as the workday begins.  

This new incident follows a six-hour Office 365 failure earlier this week due to an authentication error that prevented users from signing into Office.com, Outlook.com, Teams, Power Platform, and Dynamics365. Microsoft was forced to roll back a recent change that impacted authentication operations for numerous Microsoft and Azure services.   

Microsoft’s Office Service health dashboard also confirms that users of Outlook.com “may be unable to access their email”. 

“We’re collecting additional data from the affected infrastructure to aid in our investigation to determine the cause of impact,” Microsoft said

SEE: Office 365 outage with roll back failure ends after more than six hours

Similar to the incident earlier this week, Microsoft said it is investigating recent updates it has made to its service to identify the potential source of the problem. However, there’s no indication of when the issue will be resolved. 

“We’re reviewing recent changes to our service to further determine the cause of impact. Users may experience problems with various Exchange Online protocols, including Outlook desktop, mobile devices as well as those dependent on REST functionality,” Microsoft said

The company followed up that message to say it has diagnosed that a recent configuration update to components that route user requests is the cause of the outage

“We’ve reverted the update and are monitoring the service for recovery. We apologize for the inconvenience.”

UPDATE: At 6.46am ET, Microsoft tweeted to say the rollback has mitigated the impact for the affected features in SharePoint and Microsoft Teams.

“For impact to the Exchange service, most users are seeing recovery and we’re taking measures to ensure full recovery for all our users worldwide.” 

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Downloaddetector indicates the worst affected regions include the UK, France, Germany, Netherlands, Belgium, Norway, Sweden, and India.


Image: Downloaddetector



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I'm a 50 year old PLC programmer from Burnley, UK. I severed my time as an electrician in the baking industry and soon got involved with the up and coming technology of PLC's. Initially this was all based in the Uk but as the years went by I have gradually worked my way around the globe. At first it was mainly Mitsubishi with a bit of Modicon thrown in but these days the industry leaders seem to be the Allen Bradley range of PLC and HMI’s.

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