Learn About: Update email server settings for AT&T email from AT&T Customer Support.

Outlook 2013

Once your Outlook is open, follow these steps.

  1. Select File, and then Account Settings.
  2. Select the email account to update.
  3. In Internet Email Settings verify you have POP3 or IMAP selected, and your User Name and Password are correct.
    • For POP 3 accounts, enter inbound.att.net for your Incoming mail server and outbound.att.net forOutgoing mail server.
    • For IMAP accounts, enter imap.mail.att.net for your Incoming mail server, and smtp.mail.att.net forOutgoing mail server.
  4. Verify your User Name and Password are correct.
  5. Select More Settings, and then the Outgoing Server tab. Verify the following:
    • My outgoing server (SMTP) requires authentication is checked.
    • Use same settings as my incoming mail server is selected.
  6. Select the Advanced tab. Enter the following:
    • For POP3 accounts, the Incoming server (POP 3) is port 995, the checkbox for This server requires a secure connection (SSL) is selected, and the Outgoing server (SMTP) is port 465.
    • For IMAP accounts, the Incoming server (IMAP) is port 993, the checkbox for This server requires a secure connection (SSL) is selected, and the Outgoing server (SMTP) is port 465 or 587.
  7. Select OK.
  8. On the Internet E-mail Settings window, select Next.
  9. Select Finish.

Mac Mail

Once you have your Mac Mail open, follow these steps to update your server settings.

  1. Select Preferences.
  2. On the Account Information tab, verify you have POP3 or IMAP selected, and your User Name andPassword are correct.
    • For POP accounts, enter inbound.att.net for the Incoming Mail Server and outbound.att.net for theOutgoing Mail Server (SMTP).
    • For IMAP accounts, enter imap.mail.att.net for the Incoming Mail Server, and smtp.mail.att.net for the Outgoing Mail Server (SMTP).
  3. From the Outgoing Mail Server (SMTP) drop-down, select Edit SMTP Server List. Verify the following.
    • The Server Name is outbound.att.net or smtp.mail.att.net.
    • Use default ports (25, 265, 587) is selected.
    • Use Secure Sockets Layer (SSL) is selected.
  4. Select OK, and then select the Advanced tab. Verify the SSL checkbox is selected and the Authentication field is set for Password. Enter the following:
    • For POP accounts, enter 995 in the Port field.
    • For IMAP accounts, enter 993 in the Port field.
  5. Close the window.

Source: www.att.com