This article lists necessary steps to restore email service using the Samsung mail app on Android devices.
The Samsung mail app does not require any setting changes after your email account has been migrated to Microsoft Servers.
If the mail app does not receive any new emails it is recommended to restart the android device by powering the it on and off.
Also ensure the device is connected to and has a working internet connection. You can test this by opening a web browser and attempting to open a website.