18.203.41.21
ec2-18-203-41-21.eu-west-1.compute.amazonaws.com
54.154.226.82
ec2-54-154-226-82.eu-west-1.compute.amazonaws.com
54.75.250.227
ec2-54-75-250-227.eu-west-1.compute.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx.l.google.com.