Registro DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s

Servidores DNS Principal (mname) y Secundario (rname)
host: azstcu.us
class: IN
ttl: 755
type: SOA
mname: pdns05.domaincontrol.com
rname: dns.jomax.net
serial: 2026080400
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: azstcu.us
class: IN
ttl: 91
type: MX
pri: 0
target: 

Información TXT
host: azstcu.us
class: IN
ttl: 91
type: TXT
txt: v=spf1 -all
entries: Array