The ATT email settings iPhone device are described below: 1. From the home screen of your iPhone, select settings.
Choose mail.
Select an account.
Navigate to add account and then select Yahoo.
Next, enter the email address.
Enter the password and click next.
Click the sliders next to mail, contacts, calendars, or notes to select which data you want to download, then choose to save
With the ATT email settings described above, you can easily use an iPhone device to access ATT email account information.
Att Setup Process for iPhone Go to iPhone settings option. Scroll down and tab Mail, Contacts and Calendars option. Choose Add Account available below iCloud tag and tab other (Other option only if your att.net email provider not mentioned here. Choose Add Mail Account and enter. Name: Your Name (Whatever you want) Email: Your email address is your username Password: Your att.net account password Description: Click Next Button
Choose IMAP under incoming mail server and enter as follow. Hostname: imap.mail.att.net Username: Your email address is your username Password: Your att.net account password
Enter the following details under outgoing mail server. Hostname: smtp.mail.att.net Username: Your email address is your username Password: Your att.net account password Click Save Button
Go to settings > Your Att account > Advanced and enter details under incoming settings. Use SSL: Yes Authentication: Password Server Port: 993
Enter the following details under outgoing settings. Use SSL: Yes Authentication: Password Server Port: 465 or 587