From the settings on your android device, click on Accounts, and then on Add account. Insert the email and password to set up BellSouth email on Android device, into the designated field. Select Manual setup and choose IMAP as the account type. In the IMAP settings, insert username and password where they are required, enter imap.mail.att.net in the Incoming mail server option, and 993 in the port, select Yes for SSL. For STMP settings, insert username and password, enter smtp.mail.att.net in the outgoing mail server, 465 in the port, and Yes for required SSL.