Question and response
Question
dig inbound-smtp.eu-west-1.amazonaws.com. A
Answer
inbound-smtp.eu-west-1.amazonaws.com. 60 A 54.155.140.59
inbound-smtp.eu-west-1.amazonaws.com. 60 A 18.200.203.69
inbound-smtp.eu-west-1.amazonaws.com. 60 A 54.76.31.185
Authority
inbound-smtp.eu-west-1.amazonaws.com. 172800 NS ns-1404.awsdns-47.org.
inbound-smtp.eu-west-1.amazonaws.com. 172800 NS ns-1934.awsdns-49.co.uk.
inbound-smtp.eu-west-1.amazonaws.com. 172800 NS ns-300.awsdns-37.com.
inbound-smtp.eu-west-1.amazonaws.com. 172800 NS ns-783.awsdns-33.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0