Question and response
Question
dig ext.ncnet.ru. MX
Answer
ext.ncnet.ru. 3600 MX 10 mx.ncnet.ru.
Authority
ncnet.ru. 3600 NS ns2mt.rt.ru.
ncnet.ru. 3600 NS nsmt.rt.ru.
Additional
mx.ncnet.ru. 3600 A 195.166.185.134
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0