It is necessary to check that ATT.net email settings for Thunderbird are set up correctly, and then make any necessary changes. How to get started: Here are the steps you can take:
1. You can access the account settings by tapping the file under the account.
2. To update email settings, select the account that needs to be updated.
3. Enter the correct information in the POP3 and IMAP sections.
4. Click OK after you've added all the values.
5. To finish the process, click Finish at the end.
Use these steps to set up your email for Att Email Settings Thunderbird for the first time or on a new computer.
In Thunderbird, select File > Add Account.
Choose Manual setup or additional server types.
Select Pop or IMAP.
Complete your User Information:
Enter your name as you want it to display to others.
Enter your full AT&T email address.
Complete 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).
Complete 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. Thunderbird will test your account info. If everything passes, select Finish.