By default, UOMail separates your inbox into 2 tabs - Focused and Other - in Outlook on cell phones and through Outlook in a web browser. UOMail tries to determine what is your most important mail and shows it on the Focused tab. Everything else is in the Other tab.
To turn off the focused inbox:
Cell Phones
Open Outlook on your cell phone. Click the 3 bars in the top left-hand corner of the window.
Click the settings gear in the bottom left-hand corner of the window.
Toggle the Focused Inbox setting to off.
Outlook in a Web Browser
Open UOMail by going to https://uomail.uoregon.edu. Click the settings gear in the top right-hand corner of the window.
Scroll down and toggle the Focused Inbox setting to off.