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

Registro IPv4
host: bikehorizons.com
class: IN
ttl: 900
type: A
ip: 185.42.104.130

Servidores DNS Principal (mname) y Secundario (rname)
host: bikehorizons.com
class: IN
ttl: 3600
type: SOA
mname: ns1.cdmon.net
rname: hostmaster.bikehorizons.com
serial: 1
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: bikehorizons.com
class: IN
ttl: 900
type: MX
pri: 10
target: mail.bikehorizons.com

Información TXT
host: bikehorizons.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 include:_spf.srv.cat ~all
entries: Array