How to configure Mozilla Thunderbird proxy settings
In this article we will guide you on how to set up proxy on Mozilla Thunderbird Interface. Before we proceed with the setup, please make sure you have a running internet connection and your current IP is added in your panel under “Authorized IPs“.
Select Tools => Options.
Select Advanced => Settings
Select the Manual Proxy Configuration radio button.
Also select the option “Use this proxy for all protocols”
Click OK.