{config, ...}: {
  services.roundcube = {
    enable = true;
    hostName = "webmail.${config.networking.domain}";
    extraConfig = ''
      $config['imap_host'] = "ssl://${config.mailserver.fqdn}";
      $config['smtp_host'] = "ssl://${config.mailserver.fqdn}";
      $config['smtp_user'] = "%u";
      $config['smtp_pass'] = "%p";
    '';
  };
}