If you are having trouble with your Outlook displaying emails in the wrong language or translation, here are some steps you can take to resolve the issue:

1. Open Outlook and go to the ‘File’ tab.
2. Select ‘Options’.
3. In the Outlook Options window, select the ‘Language’ tab in the sidebar.
4. Under ‘Available editing languages’, select the preferred language.
5. Click ‘OK’.
6. Restart Outlook and check if the language issue is resolved.