Question and response
Question
dig mx1.KUBTEL.RU. TXT
Answer
mx1.kubtel.ru. 3600 TXT "v=spf1 ip4:151.252.106.66 a mx ~all"
Authority
mx1.kubtel.ru. 3600 NS ns4.kubtel.ru.
mx1.kubtel.ru. 3600 NS ns3.kubtel.ru.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0