Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: ritbergermedia.com
class: IN
ttl: 300
type: A
ip: 74.220.215.231

Servidores DNS Principal (mname) y Secundario (rname)
host: ritbergermedia.com
class: IN
ttl: 1800
type: SOA
mname: greg.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2345181912
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: ritbergermedia.com
class: IN
ttl: 300
type: MX
pri: 0
target: _dc-mx.52f85e12631a.ritbergermedia.com

Información TXT
host: ritbergermedia.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 +a +mx +ip4:74.220.215.231 ?all
entries: Array