Registro DMARC
v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s

Servidores DNS Principal (mname) y Secundario (rname)
host: fweccr.com
class: IN
ttl: 12793
type: SOA
mname: dns1.safenames.com
rname: hostmaster.safenames.net
serial: 2023080200
refresh: 28800
retry: 1800
expire: 604800
minimum-ttl: 3600

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