52.67.44.2
ec2-52-67-44-2.sa-east-1.compute.amazonaws.com
54.233.112.74
ec2-54-233-112-74.sa-east-1.compute.amazonaws.com
54.94.253.187
ec2-54-94-253-187.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.