Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Servidores DNS Principal (mname) y Secundario (rname)
host: rb-realty.net
class: IN
ttl: 21600
type: SOA
mname: pdns1.ultradns.net
rname: rbender.rbfcu.org
serial: 2026050104
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 86400

Información TXT
host: rb-realty.net
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array