Using classic Outlook for Windows in business environments
Hi Peggy,
Welcome to the Microsoft Q&A forum.
Microsoft has acknowledged the issue preventing users from accessing emails and sending messages via the Outlook desktop application and the web version, and is currently working on a fix.
You can find more detailed information about this issue in the Microsoft 365 Admin Center using the incident ID: MO1550821
Microsoft will continue to provide updates as soon as new information becomes available. You will also receive an automatic notification once the issue has been fully resolved.
If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.
I look forward to continuing the conversation.
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