The main reason users find it difficult to connect to the server is because the server settings are incorrect. You can enter the settings given below depending on whether you are using POP3 or IMAP email protocol:
Email protocol: POP3
• Inbound server: inbound.att.net
• Inbound port: 995
• SSL: Yes
• Outbound server: outbound.att.net
• Outbound port: 465
Email protocol: IMAP
• Inbound server: imap.mail.att.net
• Inbound port: 993
• SSL: Yes
• Outbound server: smtp.mail.att.net
• Outbound port: 465 or 587
If you find that the server error occurs even after you enter the correct settings you can call the Bellsouth customer support phone numberand ask for a more advanced solution to troubleshoot the error.
Read More: Bellsouth Technical Support Number | Bellsouth Customer Care