Start by opening Outlook and click on the File option. Choose Add Account from the menu and select Manual configuration server settings or additional server types next. Now, click on Next followed by Yes on the new window. You will require entering your credentials and make BellSouth email settings outlook by selecting IMAP or POP next. Set incoming mail server as imap.mail.att.net and outgoing server as smtp.mail.att.net. Click on My outgoing server (SMTP) requires an authentication box. Choose 995 for the incoming port and 465 for the outgoing port.
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