Registro DMARC
v=DMARC1; p=none; rua=mailto:postmaster@china.com

Servidores DNS Principal (mname) y Secundario (rname)
host: china.com
class: IN
ttl: 500
type: SOA
mname: dns.china.com
rname: postmaster.dns.china.com
serial: 2025072126
refresh: 1800
retry: 600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: china.com
class: IN
ttl: 600
type: MX
pri: 10
target: mx-china-com.icoremail.net

Información TXT
host: china.com
class: IN
ttl: 600
type: TXT
txt: v=spf1 include:spf.icoremail.net -all
entries: Array