Registro DMARC
v=DMARC1;p=reject;sp=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: duneswestproperties.com
class: IN
ttl: 21600
type: SOA
mname: pdns1.ultradns.net
rname: brandon\.phillips.pulte.com
serial: 2023011917
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 86400

Información TXT
host: duneswestproperties.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array