18.213.138.4
ec2-18-213-138-4.compute-1.amazonaws.com
34.193.243.211
ec2-34-193-243-211.compute-1.amazonaws.com
54.89.40.163
ec2-54-89-40-163.compute-1.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx.l.google.com.