34.205.91.137
ec2-34-205-91-137.compute-1.amazonaws.com
34.236.102.225
ec2-34-236-102-225.compute-1.amazonaws.com
52.204.102.1
ec2-52-204-102-1.compute-1.amazonaws.com

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