Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: greatrockdev.com
class: IN
ttl: 8513
type: A
ip: 199.188.201.220

Servidores DNS Principal (mname) y Secundario (rname)
host: greatrockdev.com
class: IN
ttl: 15714
type: SOA
mname: dns1.namecheaphosting.com
rname: cpanel.tech.namecheap.com
serial: 1768982964
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: greatrockdev.com
class: IN
ttl: 8514
type: MX
pri: 0
target: mail.greatrockdev.com

Información TXT
host: greatrockdev.com
class: IN
ttl: 8514
type: TXT
txt: v=spf1 +a +mx +ip4:199.188.201.212 include:spf.web-hosting.com ~all
entries: Array