18.228.210.53
ec2-18-228-210-53.sa-east-1.compute.amazonaws.com
18.228.56.181
ec2-18-228-56-181.sa-east-1.compute.amazonaws.com
54.233.137.231
ec2-54-233-137-231.sa-east-1.compute.amazonaws.com

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