Registro DMARC
v=DMARC1;p=quarantine;rua=mailto:dmarcreport@nextreads.com

Servidores DNS Principal (mname) y Secundario (rname)
host: nextreads.com
class: IN
ttl: 600
type: SOA
mname: dnscore101.epnet.com
rname: hostmaster.epnet.com
serial: 2012012654
refresh: 10800
retry: 3600
expire: 2419200
minimum-ttl: 900

Servidor de Correo
host: nextreads.com
class: IN
ttl: 600
type: MX
pri: 10
target: nrmail4001-ext.nextreads.com

Servidor de Correo
host: nextreads.com
class: IN
ttl: 600
type: MX
pri: 10
target: nrmail101-ext.nextreads.com

Servidor de Correo
host: nextreads.com
class: IN
ttl: 600
type: MX
pri: 10
target: nrmail4002-ext.nextreads.com

Servidor de Correo
host: nextreads.com
class: IN
ttl: 600
type: MX
pri: 10
target: nrmail102-ext.nextreads.com

Información TXT
host: nextreads.com
class: IN
ttl: 600
type: TXT
txt: v=spf1 ip4:140.234.252.62 ip4:140.234.252.93 ip4:140.234.254.122 ip4:140.234.254.123 ~all
entries: Array