Registro DMARC
v=DMARC1;p=none;

Registro IPv4
host: b21socialmarketing.com
class: IN
ttl: 300
type: A
ip: 5.45.93.156

Servidores DNS Principal (mname) y Secundario (rname)
host: b21socialmarketing.com
class: IN
ttl: 1800
type: SOA
mname: graham.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2410878186
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: b21socialmarketing.com
class: IN
ttl: 300
type: MX
pri: 90
target: route2.mx.cloudflare.net

Servidor de Correo
host: b21socialmarketing.com
class: IN
ttl: 300
type: MX
pri: 10
target: route1.mx.cloudflare.net

Servidor de Correo
host: b21socialmarketing.com
class: IN
ttl: 300
type: MX
pri: 2
target: route3.mx.cloudflare.net

Información TXT
host: b21socialmarketing.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 a mx include:_spf.elasticemail.com ~all
entries: Array