D("foo.com","none",
    NAPTR("@",100,10,"U","E2U+sip","!^.*$!sip:customer-service@example.com!","example"),
    NAPTR("@",102,10,"U","E2U+email","!^.*$!mailto:information@example.com!","example"),
    NAPTR("@",103,10,"U","E2U+email","!^.*$!mailto:information@example.com!",""),
    NAPTR("@",104,10,"U","E2U+email","!^.*$!mailto:information@example.com!",".")
);
