It's quite easy to reconfigure ChoiceMail to connect to BellSouth. Please follow the instructions below

1. BellSouth says On the new platform, you will have to add your domain name to your current user name (username@domain.com) in order to access your e-mail
   
   1. In ChoiceMail, click on Options | Email Accounts Settings...
   2. Select your BellSouth email address from the list on the left
   3. In the second field on the right, called POP3 source username, change the entry so that it now includes the domain name
   4. Click OK
      
2. BellSouth indicates you need to update your SMTP server settings to include authentication
   For this, you need to make a change both to ChoiceMail AND to your email client
   
   1. In ChoiceMail, click on Options | Configuration...
   2. In the section called "Outgoing mail server", check the box called "This server requires authentication"
   3. Click on the Authentication Settings button - a new dialog will pop up
   4. Make sure that the "Use same username and password as incoming server" checkbox is not checked
   5. In the Account name and Password fields, provide your complete username (which now includes the domain name) and your BellSouth Password
   6. Make sure that the "Log on using Secure Password Authentication" checkbox is not checked
   7. Click OK to close the Authentication Settings dialog
   8. Click OK to close the ChoiceMail Configuration window
      
      
   9. Open your email application and go to the email account settings dialog
      (Unfortunately the actual process depends on the particular email program you are using - you may need to refer to your email program's documentation for this step
   10. Select the account that is configured to connect to ChoiceMail - if you have multiple accounts configured to connect to ChoiceMail you will need to repeat the steps below for each account.
   11. (Note - do NOT change the incoming POP3 settings in any of these accounts - those settings are already configured to communicate with ChoiceMail)
   12. There should be a section somewhere related to configuring your outgoing server, sometimes called your SMTP server.
   13. In that section, you will find a checkbox where you can indicate that your outgoing server requires authentication - make sure it is checked
   14. You will have the option to use the same settings as your incoming mail server - do not use this option - you must specify the settings explicitly, as you did in step 5 above for ChoiceMail
   15. Set the username and password exactly the same way as you did in step 5 above
   16. Click OK to close out of your email account settings.

Everything should now be configured properly