54.207.17.17
ec2-54-207-17-17.sa-east-1.compute.amazonaws.com
54.94.217.110
ec2-54-94-217-110.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.
inbound-smtp.us-west-2.amazonaws.com.
ms53640379.msv1.invalid.