13.115.149.117
ec2-13-115-149-117.ap-northeast-1.compute.amazonaws.com
3.113.179.32
ec2-3-113-179-32.ap-northeast-1.compute.amazonaws.com
52.199.217.213
ec2-52-199-217-213.ap-northeast-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.