34.252.152.229
ec2-34-252-152-229.eu-west-1.compute.amazonaws.com
52.212.231.49
ec2-52-212-231-49.eu-west-1.compute.amazonaws.com
54.247.63.205
ec2-54-247-63-205.eu-west-1.compute.amazonaws.com

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