52.16.223.21
ec2-52-16-223-21.eu-west-1.compute.amazonaws.com
52.30.148.44
ec2-52-30-148-44.eu-west-1.compute.amazonaws.com
54.74.238.161
ec2-54-74-238-161.eu-west-1.compute.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
alt3.aspmx.l.google.com.
alt4.aspmx.l.google.com.
aspmx.l.google.com.