system/machines/magenta/services/mailserver.nix

{ ... }:

{
  imports = [ ./mailserver-accounts.secret.nix ];

  # See: https://nixos-mailserver.readthedocs.io/en/latest/options.html
  mailserver = {
    enable = true;
    fqdn = "mail.pleshevski.ru";
    domains = [ "pleshevski.ru" ];

    # Use Let's Encrypt certificates. Note that this needs to set up a stripped
    # down nginx and opens port 80.
    certificateScheme = 3;

    hierarchySeparator = "/";
  };
}