Question and response
Question
dig smtp1.xnet.ro. NS
Answer
smtp1.xnet.ro. 5 CNAME mail.vhsmail.vodafone.com.
Authority
vodafone.com. 900 SOA ns1.vodafone.com. hostmaster.vodafone.com. 2008109975 28800 7200 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0