Microsoft Outlook iOS app received an update earlier today with support for the newer iPhone devices. The app’s update changelog for version 2.102.0 mentions “Support for iPhone XS, XS Max and XR is here.”
The iPhone XS Max features a larger display and apps need adjusting to take full advantage of the bigger screen. Now that Outlook app has been updated to support iPhone XS Max, you’ll see more content on the screen.
The update not only fixes the graphical things but it is optimized for the new hardware on the 2018 iPhone models. You can download the updated Outlook app from the App Store for free.