Question and response
Question
dig cbcconst.com. MX
Answer
cbcconst.com. 3600 MX 0 mx.cbcconst.com.
Authority
The response has no authority records.
Additional
mx.cbcconst.com. 3600 A 51.79.234.119
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0