Yahoo Mail Not Working on iPhone Simple Methods to Fix Yahoo Mail not working on iPhone The following methods will help you to fix Yahoo Mail Notification Problem on iPhone in no time. Enable notifications in your iPhone settings Enter your iPhone settings and then select Notifications Now, select Yahoo Mail and then tap the Allow Notifications toggle button Here, select the switches to enable different types of notifications Enable notifications in your Yahoo Mail app · In your Yahoo! Mail application, go to the Profile section and then select Notifications · Here, select any of the options that says "enable notifications for All messages and features" or "Only the categories I choose" · If you opt for the Only the categories I choose option, select the switches to enable the types of notifications you would like to receive Update your iOS version to fix the notification issue Go to the iPhone settings and then opt for General Next, tap on Software update and then see if there are any updates · Let the update finish and then restart the device to check if the notification problem is fixed Log back into your Yahoo Mailer app · Access your Yahoo Mail app and then log out of your account Restart your iPhone device and then wait until it is fully powered on · Navigate to the Yahoo app and then log into your account Now, check if the notification problem is fixed by asking someone to send you a test email.