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Caute_cautim
Community Champion

Microsoft Exchange Online hit by new outage blocking emails

Hi All

 

Interesting more Microsoft fun, Exchange Online outages blocking emails affecting USA, UK and other regions.

 

https://www.bleepingcomputer.com/news/microsoft/microsoft-exchange-online-hit-by-new-outage-blocking...

 

Microsoft is investigating an ongoing Exchange Online outage preventing customers from sending emails and triggering 503 errors on affected systems.

Impacted users report having issues with emails sent from Microsoft 365 environments being returned with "503 5.5.1 Bad sequence of commands" errors.

 

Regards

 

Caute_Cautim

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