Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email

Servidores DNS Principal (mname) y Secundario (rname)
host: ltx.com
class: IN
ttl: 3600
type: SOA
mname: ns1-07.azure-dns.com
rname: azuredns-hostmaster.microsoft.com
serial: 1
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300

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

Información TXT
host: ltx.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:ltx.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
entries: Array

Información TXT
host: ltx.com
class: IN
ttl: 3600
type: TXT
txt: MS=ms90215470
entries: Array

Información TXT
host: ltx.com
class: IN
ttl: 3600
type: TXT
txt: MS=ms85908226
entries: Array