My mail app keeps crashing after the ios 9.2.1 update

Hey there Raihan Kabir,

I see that you are experiencing some issues with Mail on your iOS device. I have some suggested troubleshooting steps for addressing this issue that may help you, and they can be found here:

Get help with Mail on iPhone, iPad, and iPod touch - Apple Support

https://support.apple.com/en-us/HT201419

Thanks for coming to the Apple Support Communities!

these tips have nothing to do with crashing app. How do we fix crashing email app?

i have the same issue. imap and exchange email I have. be honest i don't know if it is the Sprint iphone 6 or it is the iOS, please help. I used to have 5s from At&t I never have issue, is Apple getting worse and worse with their stuff?!?!?

I had the same problem and Google brought me here.

I fixed the problem by powering down my iPhone, waiting 5 minutes, and powering it back up.

I post my solution here because it worked for me. Your mileage may vary. A complete power-down/power-up cycle fixes an amazing range of problems.