Registro DMARC
v=DMARC1; p=none; rua=mailto:ymail_dmarc_reports@ybb.ne.jp

Servidores DNS Principal (mname) y Secundario (rname)
host: ybb.ne.jp
class: IN
ttl: 900
type: SOA
mname: ybb.ne.jp
rname: postmaster.ybb.ne.jp
serial: 2304210000
refresh: 1800
retry: 900
expire: 1209600
minimum-ttl: 900

Servidor de Correo
host: ybb.ne.jp
class: IN
ttl: 900
type: MX
pri: 10
target: ybbmx1.mail.yahoo.co.jp

Información TXT
host: ybb.ne.jp
class: IN
ttl: 706
type: TXT
txt: v=spf1 redirect=yahoo.co.jp
entries: Array