If you have ATT email not working conditions because of a technical fault in the web relationship, by then it will be sharp for you to continue with the exploring blueprints that are accessible in the tech consultancy discussions. And you can visit the support team by dialing the tech help number and watching out for the expert about the issue.
To fix it do the following:-
Use webmail or a different email client
Make sure that your account is properly configured
Check your antivirus
Use IMAP instead of POP account
Remove your email profile
Start Outlook in Safe Mode
Switch to Google DNS
Hope this helps.