52.19.166.80
ec2-52-19-166-80.eu-west-1.compute.amazonaws.com
52.19.204.132
ec2-52-19-204-132.eu-west-1.compute.amazonaws.com
52.49.50.15
ec2-52-49-50-15.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.