Thunderbird
  Windows Hosting Panel | Linux Hosting Panel | WorldClient (Webmail)  
Thunderbird is setup for authentication by default.  You only need to follow this if you are having problems.

Click on the Tools menu and Account Settings options.

 

Click on the Outgoing Server option and turn on the Use name and password check box.  Click Ok and you are done.

All material on this site is 2021 MainTree Systems