If your Bellsouth email not working in Outlook, you might be able to fix it by changing your password. This problem can happen with some older accounts, and the best way to repair it is to go to Bellsouth's website and change your password.
To make a secure mail key, perform these steps:
Click on Sign-in info on your Bellsouth profile page.
Now choose the email account for which you'd like to establish a secure mail key.
Select Manage secure mail key from the secure mail key section.
Select the option to add a secure mail key.
Select Create secure mail key from the drop-down menu.
Click the OK button.
