34.253.148.135
ec2-34-253-148-135.eu-west-1.compute.amazonaws.com
54.73.121.203
ec2-54-73-121-203.eu-west-1.compute.amazonaws.com
63.34.100.221
ec2-63-34-100-221.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.