Question and response
Question
dig mx.tanvoi.com. KX
Answer
The response has no answer records.
Authority
tanvoi.com. 3600 SOA dns.tanvoi.com. hostmaster.tanvoi.com. 1299645623 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0