Using classic Outlook for Windows in business environments
Hello Lena,
I'm very sorry for the inconvenience this is causing, especially when you're unable to receive new emails and Outlook is not loading as expected.
At the moment, Outlook and other Microsoft 365 services are affected by an ongoing service incident (MO1550821), classified as Service Degradation. This may prevent users from accessing their mailboxes through Outlook desktop and Outlook on the web, and may also cause delays in email delivery. Microsoft's engineering teams are actively working to restore service and improve the availability of the affected infrastructure. Although an official Estimated Time of Arrival (ETA) for complete recovery is not yet available, recovery efforts are ongoing.
Since this is a business account, your organisation's IT administrator can monitor real-time updates and official timeline details in the Service Health portal: https://admin.cloud.microsoft/?source=applauncher#/servicehealth/:/alerts/MO1550821
If you aren't sure how to reach your organisation's IT administrator, you can find guidance here: How can I find my Microsoft 365 admin? - Microsoft Support.
I truly appreciate your patience and understanding while Microsoft works to resolve this issue.