Registro DMARC
v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;

Servidores DNS Principal (mname) y Secundario (rname)
host: documentmailbox.com
class: IN
ttl: 21600
type: SOA
mname: edns1.ultradns.com
rname: enterprisedns.broadridge.com
serial: 2025062100
refresh: 3600
retry: 3600
expire: 691200
minimum-ttl: 3600

Información TXT
host: documentmailbox.com
class: IN
ttl: 900
type: TXT
txt: google-site-verification=elWALsjlx91EErYjrJRZLmBYwo6ApmO1CozjqtYutew
entries: Array

Información TXT
host: documentmailbox.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 -all
entries: Array