34.194.153.72
ec2-34-194-153-72.compute-1.amazonaws.com
52.72.37.182
ec2-52-72-37-182.compute-1.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
alt3.aspmx.l.google.com.
alt4.aspmx.l.google.com.
aspmx.l.google.com.
inbound-smtp.us-east-1.amazonaws.com.