Set up or update AT&T email for Microsoft Outlook 2016

Learn how to set up your AT&T Mail, update settings, and add your secure mail key for Microsoft Outlook 2016.

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Software

Outlook 2016 KM1086159-slctrgrp_outlook2016

INSTRUCTIONS & INFO

Get a secure mail key

A security upgrade is coming to AT&T Mail. If you use Outlook for email, you’ll have to update your email settings. Learn more about the security upgrade.

Be sure to create a secure mail key to set up or update AT&T Mail in Outlook 2016.

Set up Outlook 2016 for AT&T Mail

Set up your email for the first time or set it up on a new computer.

Open Outlook, select File, then Add Account.
Choose Manual setup or additional server types.
Select POP or IMAP.
Fill in your user details.
- Enter your name as you want it to display to others.
- Enter your full AT&T mail address.
Enter the server information.
- Account Type - Select IMAP or POP3.
- Incoming mail server - Enter imap.mail.att.net (IMAP) or inbound.att.net (POP3).
- Outgoing mail server - Enter smtp.mail.att.net (IMAP) or outbound.att.net (POP3).
Fill out the logon information:
- User Name - Enter your full email address.
- Password - Enter or paste your secure mail key.
- Check Remember password and Require logon using Secure Password Authentication.
Select More Settings.
Complete Outgoing Server info.
- Check My outgoing server (SMTP) requires authentication.
- Select Use same settings as my incoming mail server.
Complete Advanced info.
- Incoming server - Enter 993 (IMAP) or 995 (POP3).
- Use the following type of encrypted connection - Choose SSL.
- Outgoing server - Enter 465 (IMAP and POP3).
- Use the following type of encrypted connection - Choose SSL.
Select OK and then Next. Outlook will test your account info. If everything passes, select Finish.

Verify or update AT&T Mail settings

Already have your email set up, but want to update your email account with your secure mail key? It's a simple process.

Select File, then Account Settings.
Choose your AT&T email account and then select Change.
Confirm or enter the IMAP or POP settings.
- Incoming server: imap.mail.att.net (IMAP) or inbound.att.net (POP3)
- Outgoing mail server: smtp.mail.att.net (IMAP) or outbound.att.net (POP3)
Check or enter your User Name (full AT&T Mail address).
Enter your secure mail key in the password field and select the Remember password checkbox.
Select Next. Outlook will test your account settings.
Select Close, then Finish.