3.217.134.101
ec2-3-217-134-101.compute-1.amazonaws.com
34.225.165.5
ec2-34-225-165-5.compute-1.amazonaws.com
35.172.241.65
ec2-35-172-241-65.compute-1.amazonaws.com

mx-01-us-west-2.prod.hydra.sophos.com.
mx-02-us-west-2.prod.hydra.sophos.com.