Registro DMARC
v=DMARC1;p=reject;rua=mailto:dmarc_rua@us.forvismazars.com;ruf=mailto:dmarc_ruf@us.forvismazars.com;fo=1

Servidores DNS Principal (mname) y Secundario (rname)
host: costreport.com
class: IN
ttl: 21600
type: SOA
mname: pdns98.ultradns.com
rname: netops.forvis.com
serial: 2025040305
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 0

Servidor de Correo
host: costreport.com
class: IN
ttl: 21600
type: MX
pri: 0
target: 

Información TXT
host: costreport.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array