52.19.80.247
ec2-52-19-80-247.eu-west-1.compute.amazonaws.com
52.31.39.203
ec2-52-31-39-203.eu-west-1.compute.amazonaws.com
52.48.166.44
ec2-52-48-166-44.eu-west-1.compute.amazonaws.com

alt1.aspmx.l.google.com.
aspmx.l.google.com.