How can we improve WHMCS?

Hello WHMCS Team,

Please add an option for multiple EMAIL SMTP settings, Where we can add multiple SMTP settings when 1 is failed it will automatically send an email using 2nd SMTP settings. or automatically switch the SMTP on 2nd one. I want to say add an option to sent an alternative SMTP setting.

If already have a module for that you can also share it with me.