Question and response
Question
dig mx.zsttk.ru. A
Answer
mx.zsttk.ru. 120 A 80.89.128.3
Authority
zsttk.ru. 120 NS ns.transtelecom.net.
zsttk.ru. 120 NS ns.zsttk.ru.
zsttk.ru. 120 NS ns1.transtelecom.net.
Additional
ns.zsttk.ru. 120 A 80.89.128.8
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0