Question and response
Question
dig micrusero.com. MX
Answer
micrusero.com. 3600 MX 0 mx.micrusero.com.
Authority
The response has no authority records.
Additional
mx.micrusero.com. 3600 A 149.50.99.130
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0