34.238.63.98
ec2-34-238-63-98.compute-1.amazonaws.com
35.173.171.164
ec2-35-173-171-164.compute-1.amazonaws.com
52.21.152.142
ec2-52-21-152-142.compute-1.amazonaws.com

mailstore1.secureserver.net.
smtp.secureserver.net.