Question and response
Question
dig mail.texnet.net.br. NS
Answer
mail.texnet.net.br. 5 CNAME smtp-vip.kinghost.net.
Authority
kinghost.net. 5766 SOA dns1.kinghost.com.br. abuse.kinghost.com.br. 2307120001 3600 600 86400 28800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0