Question and response
Question
dig satmathpracticetest.com. MX
Answer
satmathpracticetest.com. 3600 MX 0 mx.satmathpracticetest.com.
Authority
The response has no authority records.
Additional
mx.satmathpracticetest.com. 3600 A 78.159.124.79
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0