Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@grupomegamedia.com

Servidores DNS Principal (mname) y Secundario (rname)
host: grupomegamedia.com
class: IN
ttl: 1800
type: SOA
mname: dee.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2406705592
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: grupomegamedia.com
class: IN
ttl: 300
type: MX
pri: 1
target: mail.grupomegamedia.mx

Información TXT
host: grupomegamedia.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=caSyho6sTujzHkAyED_hGRnjZFhiRLIeboGVdl22K_Y
entries: Array

Información TXT
host: grupomegamedia.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx -all
entries: Array