Registro DMARC
v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc_rua@onsecureserver.net;

Registro IPv4
host: ucourse.com
class: IN
ttl: 10800
type: A
ip: 198.12.239.135

Servidores DNS Principal (mname) y Secundario (rname)
host: ucourse.com
class: IN
ttl: 3600
type: SOA
mname: ns63.domaincontrol.com
rname: dns.jomax.net
serial: 2026012004
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: ucourse.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mailstore1.secureserver.net

Servidor de Correo
host: ucourse.com
class: IN
ttl: 3600
type: MX
pri: 0
target: smtp.secureserver.net

Información TXT
host: ucourse.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:secureserver.net -all
entries: Array