Step Wise Manual Nvbell mail settings for thunderbird
If you don't have a Nvbell mail address. you can create an email id from here then you can Nvbell email login.
Open Thunderbird Software App. Click on Email
When you click on the email, pop-up Set UP an Existing Account Screen.
Enter Your name, Nvbell Email address and Password then press Continue.
Click on the Manual config menu at bottom.
Enter Below Nvbell incoming server settings.
In incoming click on the dropdown menu and select IMAP.
Add server host :imap.mail.att.net
Port: 993
select SSL/TLS
Enter Below Nvbell outgoing server settings.
In outgoing select SMTP.
Add server host :smtp.mail.att.net
Port: 465
select SSL/TLS
Tap on Done. Now you are ready to use your Nvbell email account on your Thunderbird.