54.154.187.41
ec2-54-154-187-41.eu-west-1.compute.amazonaws.com
54.220.161.83
ec2-54-220-161-83.eu-west-1.compute.amazonaws.com
54.220.31.117
ec2-54-220-31-117.eu-west-1.compute.amazonaws.com

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