Question and response
Question
dig efiservers.com. MX
Answer
efiservers.com. 1800 MX 10 mx.efiservers.com.
Authority
The response has no authority records.
Additional
mx.efiservers.com. 1800 A 198.23.53.52
. 0 OPT ; payload 600, xrcode 0, version 0, flags 0