Using classic Outlook for Windows in educational settings
That's because you are in the To Do module.
When you select the Mail module in the Navigation Bar on the left (or CTRL+1), you can search through all your emails.
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
How do I search in emails or all items (not only in todo)
Using classic Outlook for Windows in educational settings
That's because you are in the To Do module.
When you select the Mail module in the Navigation Bar on the left (or CTRL+1), you can search through all your emails.