54.207.25.220
ec2-54-207-25-220.sa-east-1.compute.amazonaws.com
54.233.95.18
ec2-54-233-95-18.sa-east-1.compute.amazonaws.com

alt1.aspmx.l.google.com.
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aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx4.googlemail.com.
aspmx5.googlemail.com.
aspmx.l.google.com.