Question and response
Question
dig wawd.mx.e.sparkpost.com. A
Answer
wawd.mx.e.sparkpost.com. 60 A 44.246.70.110
wawd.mx.e.sparkpost.com. 60 A 54.191.97.145
wawd.mx.e.sparkpost.com. 60 A 44.236.29.203
wawd.mx.e.sparkpost.com. 60 A 54.187.227.57
wawd.mx.e.sparkpost.com. 60 A 35.155.130.220
wawd.mx.e.sparkpost.com. 60 A 54.200.188.131
Authority
mx.e.sparkpost.com. 172800 NS ns-1132.awsdns-13.org.
mx.e.sparkpost.com. 172800 NS ns-2015.awsdns-59.co.uk.
mx.e.sparkpost.com. 172800 NS ns-867.awsdns-44.net.
mx.e.sparkpost.com. 172800 NS ns-93.awsdns-11.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0