As stated above, I would like to know whether would the Mail application in the Iphone be affected if I change the passord to my email via computer?
Yes, the iPhone mail client uses the same information to access your email account. If you change the password for the email account via the computer, you will have to change it in the mail settings on the phone.
Sure. If you change the password on your account you'll need to update the account settings on your phone with the new password too.
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