You will now need to reauthenticate your email app every 30 days instead of every five days.
We recommend you open your email app each day instead of relying on mobile notifications, as you may stop receiving these notification after 30 days passes since your last authentication.
The requirement to authenticate every 30 days also applies to OneDrive and other applications in the Microsoft 365 suite, so be sure to log into those apps regularly if you use them.