13.228.247.89
ec2-13-228-247-89.ap-southeast-1.compute.amazonaws.com
18.136.76.219
ec2-18-136-76-219.ap-southeast-1.compute.amazonaws.com
52.74.144.34
ec2-52-74-144-34.ap-southeast-1.compute.amazonaws.com

alt1.aspmx.l.google.com.
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aspmx.l.google.com.