Registro DMARC
v=DMARC1;p=reject;rua=mailto:reports@npostrela.net;sp=reject;ri=86400

Servidores DNS Principal (mname) y Secundario (rname)
host: npostrela.net
class: IN
ttl: 3600
type: SOA
mname: ftp.npostrela.net
rname: ftp.npostrela.net
serial: 102
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600

Servidor de Correo
host: npostrela.net
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.npostrela.net

Información TXT
host: npostrela.net
class: IN
ttl: 3600
type: TXT
txt: v=spf1 +a +mx -all
entries: Array