15.229.92.160
ec2-15-229-92-160.sa-east-1.compute.amazonaws.com
18.228.158.209
ec2-18-228-158-209.sa-east-1.compute.amazonaws.com
18.231.12.167
ec2-18-231-12-167.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.