Is your AOL Mail not working on the iPhone? If yes, you don't need to worry as you only need to force stop your AOL Mail app and then restart it to resolve the issue. Refer to these steps to restart your AOL Mail app on your iPhone:
● You need to double press the Home button of your iPhone device.
● Then swipe up on the image of the Mail app to close the app.
● After that, you need to re-launch the Mail app and check if the issue of not working is resolved.
Remember these steps will work only for iOS 9.3 and later versions. If you still cannot access your email, you can call AOL Customer Service Number and ask for an expert's help.
Read more: - How to Fix AOL Mail not working on iPhone | How to Fix AOL Mail Error Code 521 5.21
In order to fix the error, you must follow the most effective solutions, give below.
Remove your AOL mail account from iPhone and add it back
Turn ‘On’ and ‘Off’ the ‘Airplane’ mode from the iPhone control panel
Verify your AOL mail account on iPhone
Re-configure the correct AOL IMAP settings on your iPhone device
Reset your Network settings on iPhone and fix AOL email not working problem.
I hope this helps!
Mark Wilson