52.48.149.73
ec2-52-48-149-73.eu-west-1.compute.amazonaws.com
54.73.237.63
ec2-54-73-237-63.eu-west-1.compute.amazonaws.com
54.77.248.190
ec2-54-77-248-190.eu-west-1.compute.amazonaws.com

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