34.194.171.85
ec2-34-194-171-85.compute-1.amazonaws.com
52.20.33.187
ec2-52-20-33-187.compute-1.amazonaws.com
52.206.62.149
ec2-52-206-62-149.compute-1.amazonaws.com
54.156.115.154
ec2-54-156-115-154.compute-1.amazonaws.com

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