In response to this forum post: Legality behind auto-accepting Let's Encrypt's Terms of Services I have created a fully functional solution that notifies the user about our legal liability to the software we create here, and that they will be auto-agreed to the Let’s Encrypt Terms of Service.
However, I bet that my lack of sleep and lack of legal expertise will require that my fork’s legal notice be revised so that it meets the language we need.
Here’s the fork: https://github.com/EliterScripts/mailinabox-legal