Setup
certbot -d "mail.rohitagarwal.dev" certonly --nginx --register-unsafely-without-email --agree-tos
https://github.com/LukeSmithxyz/emailwiz/blob/master/emailwiz.sh#L21
https://vadosware.io/post/its-never-been-easier-or-harder-to-self-host-email/ https://maddy.email/