Microsoft Exchange Online is experiencing an outage primarily affecting users in Europe, with delays in sending and receiving emails beginning around 12:30 p.m. Central European Summer Time. Several users have reported problems, and the exact extent of the disruption remains unclear. Microsoft acknowledges that some users located in Europe may experience difficulties sending or receiving emails via Exchange Online. The company identified the cause as an abundance of service-to-service calls causing authentication issues and is attempting to limit such calls to mitigate the problem. No definitive solution or timeframe for full service restoration has been provided. The outage affects millions of business users and follows other Microsoft service incidents this year.
Microsoft Exchange Online is experiencing an outage that mainly affects European users. Users have been experiencing delays in sending and receiving emails since around 12:30 p.m. Central European Summer Time. Several users have reported experiencing problems, although the exact extent of the issue is still unclear. Microsoft acknowledges the problems on a support page in the closed admin center. The company states that "some users located in Europe" may experience problems sending or receiving emails via Exchange Online.
The tech giant has identified the cause of the problem. It involves "an abundance of service-to-service calls" that are causing authentication issues. Microsoft is trying to resolve the problem by limiting such calls, but has not yet announced a definitive solution. This outage affects the email service used by millions of business users for daily communication. Users who rely on Exchange Online for business communication should expect ongoing delays.
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