Run CubexSoft Email Backup Tool
Select an email source from available sources and check Use Proxy option.
After that, the tool will ask for Proxy Address and Proxy Port Number. Enter your proxy details in specific fields.
Click Network & Internet. The list of network and Internet-related settings appears.
Click Proxy. The list of available proxy settings appears.
In the Automatic Proxy Setup section, set the Use Setup Script switch to On.
Enter the script address as it was given to you; then click Save.
You can also enter proxy address and port number manually and press Save button.
In the Windows search bar, type "Internet Options".
Select Internet Options from the results list.
Click to open the Connections tab.
Click the LAN settings button.
Notice in the Proxy Server section. Here, you can locate your Proxy Address and Proxy Port No.