Question and response
Question
dig issr.ru. MX
Answer
issr.ru. 86400 MX 5 mail.issr.ru.
Authority
issr.ru. 86400 NS dns1.mts.ru.
issr.ru. 86400 NS dns0.mts.ru.
Additional
mail.issr.ru. 86400 A 89.106.192.55
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0