My email is not working. It has become unresponsive and won't change boxes or pages. Emails are still being delivered but I can't access them!

Try to reset your device. This won't delete your data stored on the phone.

• Press and hold the Sleep/Wake button
• Press and hold on the Home button
• Keep holding both buttons until the display turns off and back on with Apple logo on it.

Alternatively, you may go to Settings - General - Reset - Reset All Settings

After that, follow the instructions and add a mail account(s): Add an email account on your iPhone, iPad, or iPod touch - Apple Support