Registro DMARC
v=DMARC1; p=reject;

Servidores DNS Principal (mname) y Secundario (rname)
host: printreorder.com
class: IN
ttl: 21600
type: SOA
mname: udns1.cscdns.net
rname: hostmaster.cscdns.net
serial: 2024050803
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 86400

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