Registro DMARC
v=DMARC1; p=reject; sp=reject; fo=1; ri=3600; rua=mailto:dmarc_agg@nab.com.au; ruf=mailto:dmarc_for@nab.com.au

Servidores DNS Principal (mname) y Secundario (rname)
host: nationalaustbank.com
class: IN
ttl: 7200
type: SOA
mname: ns1.national.com.au
rname: hostmaster.national.com.au
serial: 2023091120
refresh: 7200
retry: 1800
expire: 2592000
minimum-ttl: 43200

Información TXT
host: nationalaustbank.com
class: IN
ttl: 7200
type: TXT
txt: v=spf1 -all
entries: Array