Question and response
Question
dig zcdn.ru. MX
Answer
zcdn.ru. 86400 MX 20 mail.zcdn.ru.
Authority
zcdn.ru. 86400 NS ns1.zcdn.ru.
zcdn.ru. 86400 NS ns2.zcdn.ru.
zcdn.ru. 86400 NS ams.loky.pw.
Additional
mail.zcdn.ru. 120 A 77.87.215.24
ns1.zcdn.ru. 120 A 91.90.212.21
ns2.zcdn.ru. 120 A 77.87.215.24
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0