18.228.178.28
ec2-18-228-178-28.sa-east-1.compute.amazonaws.com
18.228.215.98
ec2-18-228-215-98.sa-east-1.compute.amazonaws.com
54.233.106.86
ec2-54-233-106-86.sa-east-1.compute.amazonaws.com

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aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx.l.google.com.