Question and response
Question
dig huai1.playbackmail.com. MX
Answer
huai1.playbackmail.com. 300 MX 10 loire.playbackmail.com.
Authority
playbackmail.com. 172800 NS ns-1383.awsdns-44.org.
playbackmail.com. 172800 NS ns-1640.awsdns-13.co.uk.
playbackmail.com. 172800 NS ns-406.awsdns-50.com.
playbackmail.com. 172800 NS ns-722.awsdns-26.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0