Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: americanmedbilling.net
class: IN
ttl: 3600
type: SOA
mname: ns29.domaincontrol.com
rname: dns.jomax.net
serial: 2024082710
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

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

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