Registro DMARC
v=DMARC1; p=reject; pct=100

Servidores DNS Principal (mname) y Secundario (rname)
host: westpac.us
class: IN
ttl: 28800
type: SOA
mname: ns1.brandshelter.com
rname: tech.brandshelter.com
serial: 2023061300
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 300

Información TXT
host: westpac.us
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array