Registro DMARC
v=spf1 a:dns.crossfader.ca ~all

Servidores DNS Principal (mname) y Secundario (rname)
host: Crossfader.ca
class: IN
ttl: 3601
type: SOA
mname: dns1.registrar-servers.com
rname: hostmaster.registrar-servers.com
serial: 1788694625
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Servidor de Correo
host: Crossfader.ca
class: IN
ttl: 3600
type: MX
pri: 0
target: mx.Crossfader.ca

Información TXT
host: Crossfader.ca
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a:dns.crossfader.ca ~all
entries: Array