Using the following steps, you can easily set up an AT&T email on iPhone.
1. Choose on the Settings app icon on your iPhone
2. Then, choose Mail, Contacts, Calendars button. You will be a launch to the mail, contacts, calendars settings page
3. Choose on the Add account button and choose other as the option from the given list
4. Choose on the Add mail account option and enter the required details.
5. Then, you will need to choose the IMAP option under the Incoming mail server field and enter the required details
6. After that, you can swipe and enter the required information under the Outgoing mail server
7. Then, you will require to choose on the save button & choose your email address on the next screen, then, swipe up and choose SMTP under the outgoing mail server.
8. Next, go to the mail server field, choose smtp.mail.att.net, and make sure that you display the details appearing on the screen
9. Then, simply choose on the done button and return to the main screen.
10. Now, go back to the main screen and restart your iPhone to finish the configuration process.
So, this is a post on how you can easily Set up your AT&T email account on your iPhone.
Also, Read More: How to Fix Cannot Send Emails from My AT&T Mail?