35.167.123.157
ec2-35-167-123-157.us-west-2.compute.amazonaws.com
44.228.177.153
ec2-44-228-177-153.us-west-2.compute.amazonaws.com
44.238.41.215
ec2-44-238-41-215.us-west-2.compute.amazonaws.com
52.26.175.102
ec2-52-26-175-102.us-west-2.compute.amazonaws.com
54.184.154.31
ec2-54-184-154-31.us-west-2.compute.amazonaws.com
54.70.213.25
ec2-54-70-213-25.us-west-2.compute.amazonaws.com

eu-smtp-inbound-1.mimecast.com.
eu-smtp-inbound-2.mimecast.com.