If the popular AOL Email service cannot sync with your mail app or your smartphone, then you need to perform following troubleshooting steps:
First, remove your AOL account and then add it again
Ever check the server setting of your AOL mail entered in your mail app.
You also need to check the antivirus setting of your device.
Run the troubleshooter.
Even after implementing these troubleshooting steps, if you are not able to solve the problem, then call aol contact number to speak with experts. The customer care team is reachable at all 24 hours round the clock.