18.214.199.4
ec2-18-214-199-4.compute-1.amazonaws.com
34.197.143.172
ec2-34-197-143-172.compute-1.amazonaws.com
54.91.209.172
ec2-54-91-209-172.compute-1.amazonaws.com

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