Question and response
Question
dig zsttk.RU. MX
Answer
zsttk.ru. 120 MX 10 mx.ipv6.zsttk.net.
zsttk.ru. 120 MX 5 mx.zsttk.ru.
Authority
zsttk.ru. 120 NS ns1.transtelecom.net.
zsttk.ru. 120 NS ns.zsttk.ru.
zsttk.ru. 120 NS ns.transtelecom.net.
Additional
mx.zsttk.ru. 120 A 80.89.128.3
mx.ipv6.zsttk.net. 86400 A 80.89.128.3
mx.ipv6.zsttk.net. 86400 AAAA 2a02:2560:1:b:0:0:0:3
ns.zsttk.ru. 120 A 80.89.128.8
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0