Viewing Comcast email on iPhone 13
Until I recently changed my Comcast password I could view my email on my iPhone 13. Now I cannot.
iPhone 6, iOS 12
You will need to change the password used for your Comcast Email. There are 2 places where you will need to enter the password. The first place is for incoming email and the other is for outgoing email called SMTP.
You will find this at Settings > Mail > Accounts > [email with changed password]. Enter at Incoming Mail Server, then tap SMTP and the primary server again on the top of the screen. Enter your password too.