{
  pkgs,
  vhackPackages,
}: {
  mkUser = user: serverName: {
    nodes,
    lib,
    ...
  }: {
    imports = [
      ./acme/client.nix
    ];

    environment.systemPackages = [
      vhackPackages.fetchmail-common-name
      pkgs.msmtp
      pkgs.procmail

      pkgs.bind
      pkgs.openssl
    ];

    networking.nameservers = lib.mkForce [
      nodes.name_server.networking.primaryIPAddress
      nodes.name_server.networking.primaryIPv6Address
    ];

    users.users."${user}" = {isNormalUser = true;};

    systemd.tmpfiles.rules = [
      "d /home/${user}/mail         0700 ${user} users - -"
      "L /home/${user}/.fetchmailrc -    -       -     - /etc/homeSetup/.fetchmailrc"
      "L /home/${user}/.procmailrc  -    -       -     - /etc/homeSetup/.procmailrc"
      "L /home/${user}/.msmtprc     -    -       -     - /etc/homeSetup/.msmtprc"
    ];

    environment.etc = {
      "homeSetup/.fetchmailrc" = {
        text = ''
          poll "${serverName}.server.com" protocol IMAP
            username "${user}"
            password "${user}-password"
            ssl
            mda procmail;
        '';
        mode = "0600";
        inherit user;
      };
      "homeSetup/.procmailrc" = {
        text = ''
          DEFAULT=$HOME/mail
        '';
        mode = "0600";
        inherit user;
      };
      "homeSetup/.msmtprc" = {
        text = ''
          account        ${user}
          host           ${serverName}.server.com
          domain         ${user}.com
          port           465
          from           ${user}@${user}.com
          user           ${user}
          password       ${user}-password
          auth           on
          tls            on
          tls_starttls   off
        '';
        mode = "0600";
        inherit user;
      };
    };
  };
}