iOS 14.7: Mail App: App crashes if you exit out of Yahoo or Aol account creation and then return to the app

 iOS 14.7

Mail App for iOS

Date: 08/10/2021

Description:

This one is much easier to show than it is to describe. There is an extremely easy way to crash the native mail app.

Here's the crash dump:

This crash is easy to reproduce. It happens when the user first launches the native mail app for iOS. The mail app presents the user with multiple options. If the user selects either Yahoo or Aol. they will be presented with an option to use create a new Yahoo or Aol. account. If they exit out of account creation, and then re-launch the app, the app always seems to crash.

Steps to Reproduce:

1. Download the native Mail app for iOS

2. From the "Welcome to Mail" screen select "yahoo!"

3. From the "Yahoo!" sign in page, select the "Create an account" option 

4. Press the home button to exit out the app

5. Wait 10 seconds and re-launch the app 

6. Select "Cancel" to dismiss the Yahoo! account creation option 

7. Wait 1 second - app crashes at "Welcome to Mail" screen

Result: There is an easy way to crash the native mail app - if you exit out of the app while it sits on the Yahoo! or Aol. account creation options, the app will crash if it is relaunched 

Expected: The native mail app shouldn't be this easy to crash

Select either "Yahoo!" or "Aol."

Select "Create an account"...

Exit out of the app - leave this screen...

Re-launch the Mail app after a while...

The app will crash after "Cancel" is selected.