15.161.121.244
ec2-15-161-121-244.eu-south-1.compute.amazonaws.com
15.161.191.24
ec2-15-161-191-24.eu-south-1.compute.amazonaws.com
15.161.21.189
ec2-15-161-21-189.eu-south-1.compute.amazonaws.com

mx-01-eu-central-1.prod.hydra.sophos.com.
mx-02-eu-central-1.prod.hydra.sophos.com.