Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc@downrighttech.com; fo=1;

Servidores DNS Principal (mname) y Secundario (rname)
host: sterlingsl.ca
class: IN
ttl: 3600
type: SOA
mname: ns27.domaincontrol.com
rname: dns.jomax.net
serial: 2025010304
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: sterlingsl.ca
class: IN
ttl: 3600
type: MX
pri: 0
target: sterlingsl-ca.mail.protection.outlook.com

Información TXT
host: sterlingsl.ca
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array