52.52.10.25
ec2-52-52-10-25.us-west-1.compute.amazonaws.com
52.52.210.58
ec2-52-52-210-58.us-west-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.