177.71.255.12
ec2-177-71-255-12.sa-east-1.compute.amazonaws.com
54.94.177.84
ec2-54-94-177-84.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.