To start I want to say thanks for this awesome project!
Now… I have set up letsencrypt but my website is not trusted.
(Sorry for this german pic)
But this Cert is from LetsEncrypt This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/
you get the full command in the email and the server part ig highlighted in yellow so it should be hard to miss, but as of now when you are not whitelisted specifying the server wouldnt help anyway, since the server sees that you arent whitelisted.