Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc-report-a@rx.rakuten.co.jp

Registro IPv4
host: lb-133-237-180-217.lbaas.jpe1a.rdcnw.net
class: IN
ttl: 300
type: A
ip: 133.237.180.217

host: plaza.rakuten.co.jp
class: IN
ttl: 300
type: CNAME
target: lb-133-237-180-217.lbaas.jpe1a.rdcnw.net