Question and response
Question
dig mx0.m417.ru. NS
Answer
mx0.m417.ru. 5 CNAME m417.ru.
m417.ru. 5 NS dns1.zolotoff.ru.
m417.ru. 5 NS mirelle.ping0.ru.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0