Mail app crashes on iPhone 6 I am using an iPhone 6. Whenever I try to open the default Mail app on my phone, it crashes within one or two seconds, rendering the app useless.

The phone was running iOS 8 this morning when the problem was occurring, so I decided to make a backup and update to iOS 9.3.1, just in case 9.3.1 had a bug fix for this problem.

However, after updating, I am facing the same issue.

Any fixes?
What eventually ended up solving the problem was removing my email account from the phone, then re-adding it.

The steps to doing this are:


Quit Mail (Double-click Home button, swipe up)
Open Settings
Tap Mail, Contacts, Calendars
Select your account, then hit Remove / Delete
Add it back by going back to Mail, Contacts, Calendars, selecting Add Account, and re-entering your information.