Question and response
Question
dig 9rcorp.com. MX
Answer
9rcorp.com. 3600 MX 0 mx.9rcorp.com.
Authority
The response has no authority records.
Additional
mx.9rcorp.com. 3600 A 78.135.109.154
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0