Question and response
Question
dig inbound-smtp.eu-west-2.amazonaws.com. A
Answer
inbound-smtp.eu-west-2.amazonaws.com. 60 A 13.42.172.25
inbound-smtp.eu-west-2.amazonaws.com. 60 A 3.11.98.45
inbound-smtp.eu-west-2.amazonaws.com. 60 A 18.168.248.150
Authority
inbound-smtp.eu-west-2.amazonaws.com. 172800 NS ns-1452.awsdns-53.org.
inbound-smtp.eu-west-2.amazonaws.com. 172800 NS ns-1852.awsdns-39.co.uk.
inbound-smtp.eu-west-2.amazonaws.com. 172800 NS ns-298.awsdns-37.com.
inbound-smtp.eu-west-2.amazonaws.com. 172800 NS ns-655.awsdns-17.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0