Question and response
Question
dig mx.mailfiltering.com. A
Answer
mx.mailfiltering.com. 300 A 69.36.161.91
mx.mailfiltering.com. 300 A 69.36.161.92
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0