54.155.228.184
ec2-54-155-228-184.eu-west-1.compute.amazonaws.com
54.171.162.227
ec2-54-171-162-227.eu-west-1.compute.amazonaws.com
54.194.201.93
ec2-54-194-201-93.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.