Registro DMARC
v=DMARC1; p=reject;

Registro IPv4
host: theshart.com
class: IN
ttl: 3600
type: A
ip: 216.239.136.99

Servidores DNS Principal (mname) y Secundario (rname)
host: theshart.com
class: IN
ttl: 21600
type: SOA
mname: primary.guardeddns.net
rname: dns-admin.guardeddns.net
serial: 102
refresh: 28800
retry: 450
expire: 1209600
minimum-ttl: 900

Servidor de Correo
host: theshart.com
class: IN
ttl: 3600
type: MX
pri: 0
target: 

Información TXT
host: theshart.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array