Question and response
Question
dig inbound-smtp.us-east-2.amazonaws.com. A
Answer
inbound-smtp.us-east-2.amazonaws.com. 60 A 3.23.210.235
inbound-smtp.us-east-2.amazonaws.com. 60 A 18.219.98.68
inbound-smtp.us-east-2.amazonaws.com. 60 A 3.133.202.227
Authority
inbound-smtp.us-east-2.amazonaws.com. 172800 NS ns-1270.awsdns-30.org.
inbound-smtp.us-east-2.amazonaws.com. 172800 NS ns-1755.awsdns-27.co.uk.
inbound-smtp.us-east-2.amazonaws.com. 172800 NS ns-402.awsdns-50.com.
inbound-smtp.us-east-2.amazonaws.com. 172800 NS ns-638.awsdns-15.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0