Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear @Operations Department,
Thank you for posting your question in the Microsoft Q&A forum.
For better understanding your situation, could you please provide more detail information so I can support effectively:
Are you still able to use other Microsoft apps such as Word, Excel, etc.?
When you say you cannot send or receive emails, does this issue occur specifically in Outlook? Also, which version of Outlook are you using (New Outlook or Classic Outlook)?
Are you a standard user or a Global Administrator in your organization?
Does this issue occur only for your account, or have you checked whether other users are experiencing the same problem?
Please understand that the more information you provide, the more helpful I can support.
Looking forward to your update