Question and response
Question
dig tanvoi.com. MX
Answer
tanvoi.com. 3600 MX 0 mx.tanvoi.com.
Authority
The response has no authority records.
Additional
mx.tanvoi.com. 3600 A 184.107.143.111
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0