Question and response
Question
dig infra.nic.ru. MX
Answer
infra.nic.ru. 43200 MX 5 relay1.nic.ru.
infra.nic.ru. 43200 MX 5 relay2.nic.ru.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0