Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: dacstaff.org
class: IN
ttl: 7200
type: SOA
mname: NS99.WORLDNIC.COM
rname: namehost\@WORLDNIC.COM
serial: 124110712
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: dacstaff.org
class: IN
ttl: 7200
type: MX
pri: 10
target: dacstaff-org.mail.protection.outlook.com

Información TXT
host: dacstaff.org
class: IN
ttl: 7200
type: TXT
txt: v=spf1 include:spf.protection.outlook.com include:sendgrid.net ip4:8.24.204.8/29 ip4:8.24.204.16/31 ip4:8.24.204.18/32 ?all
entries: Array