Registro DMARC
v=DMARC1; p=reject; rua=mailto:3c8291c4a4b1113@rep.dmarcanalyzer.com; ruf=mailto:3c8291c4a4b1113@for.dmarcanalyzer.com; fo=1;

Registro IPv4
host: port.com
class: IN
ttl: 86400
type: A
ip: 198.50.252.65

Servidores DNS Principal (mname) y Secundario (rname)
host: port.com
class: IN
ttl: 86400
type: SOA
mname: ns1.instradns.com
rname: root.instra.com
serial: 2012110901
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: port.com
class: IN
ttl: 86400
type: MX
pri: 10
target: mail.port.com

Información TXT
host: port.com
class: IN
ttl: 86400
type: TXT
txt: v=spf1 -all
entries: Array