Registro DMARC
v=DMARC1;p=quarantine;adkim=s;aspf=s;

Registro IPv4
host: studies.nu
class: IN
ttl: 1792
type: A
ip: 209.38.54.191

Servidores DNS Principal (mname) y Secundario (rname)
host: studies.nu
class: IN
ttl: 1800
type: SOA
mname: ns1.nameshift.com
rname: hostmaster.nameshift.com
serial: 1773284400
refresh: 3600
retry: 1200
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: studies.nu
class: IN
ttl: 1800
type: MX
pri: 0
target: 

Información TXT
host: studies.nu
class: IN
ttl: 1800
type: TXT
txt: v=spf1 -all
entries: Array