how to change your default email app on iphone?
['Step #1. Launch Settings app on your iPhone/iPad → Scroll down and tap on Mail, Contacts, Calendars.', 'Step #2. Again scroll down and tap on Default Account from under the MAIL section.', 'Step #3. Select any account you want to set as Default Account.', 'Step #4. ... ', 'Step #5. ... ', 'Step #6. ... ', 'Step #7.']