18.229.236.60
ec2-18-229-236-60.sa-east-1.compute.amazonaws.com
18.229.56.231
ec2-18-229-56-231.sa-east-1.compute.amazonaws.com
18.231.0.243
ec2-18-231-0-243.sa-east-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.