Question and response
Question
dig dc1.ru.itoolabs.net. MX
Answer
dc1.ru.itoolabs.net. 3600 MX 10 mx0.dc1.ru.itoolabs.net.
Authority
The response has no authority records.
Additional
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 1232, xrcode 0, version 0, flags 0