Question and response
Question
dig mx1.masterhost.ru. MX
Answer
mx1.masterhost.ru. 900 MX 10 mx1.masterhost.ru.
Authority
The response has no authority records.
Additional
mx1.masterhost.ru. 900 A 90.156.132.120
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0