https://forums.att.com/conversations/att-internet-security/alias-to-subaccount/5defcb2ebad5f2f6067b21d7?commentId=5defcd13bad5f2f6069e48bf&page=6
Feb 14, 2018 · The ATT instructions for updating email application settings for Microsoft Outlook 2010 provides only the IMAP server options with no mention of POP3. I even tried