Registro DMARC
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

Registro IPv4
host: iscoa.com
class: IN
ttl: 900
type: A
ip: 199.250.192.221

Servidores DNS Principal (mname) y Secundario (rname)
host: iscoa.com
class: IN
ttl: 14400
type: SOA
mname: ns1.inmotionhosting.com
rname: systems-notices.inmotionhosting.com
serial: 2021032900
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: iscoa.com
class: IN
ttl: 900
type: MX
pri: 0
target: iscoa.com