Registro DMARC
v=DMARC1; p=none

Servidores DNS Principal (mname) y Secundario (rname)
host: master-mall.ru
class: IN
ttl: 21600
type: SOA
mname: ns1.reg.ru
rname: hostmaster.ns1.reg.ru
serial: 1775457706
refresh: 14400
retry: 3600
expire: 604800
minimum-ttl: 10800

Servidor de Correo
host: master-mall.ru
class: IN
ttl: 21600
type: MX
pri: 0
target: emx.mail.ru

Información TXT
host: master-mall.ru
class: IN
ttl: 21600
type: TXT
txt: v=spf1 redirect=_spf.mail.ru
entries: Array