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