52.211.229.203
ec2-52-211-229-203.eu-west-1.compute.amazonaws.com
54.228.93.54
ec2-54-228-93-54.eu-west-1.compute.amazonaws.com
54.247.112.167
ec2-54-247-112-167.eu-west-1.compute.amazonaws.com

cluster1a.eu.messagelabs.com.
cluster1.eu.messagelabs.com.