{ config, pkgs, ... }:

{
  services.opendkim = {
    enable = true;
    domains = "csl:ktiu.net,t9e.me";
    selector = "202412";
    settings.UMask = "007";
  };

  users.users.postfix.extraGroups = [ "opendkim" ];

  services.postfix.settings.main.smtpd_milters = [ "unix:/run/opendkim/opendkim.sock" ];
}