Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@gru.com.br; ruf=mailto:dmarc@gru.com.br; pct=100

Servidores DNS Principal (mname) y Secundario (rname)
host: gru.com.br
class: IN
ttl: 3600
type: SOA
mname: ns1.aziondns.net
rname: admin.azion.com
serial: 2025062723
refresh: 43200
retry: 7200
expire: 1209600
minimum-ttl: 3600

Información registro PTR (Reverso - Inverso)
host: gru.com.br
class: IN
ttl: 90
type: PTR
target: gru-com-br.mail.protection.outlook.com

Servidor de Correo
host: gru.com.br
class: IN
ttl: 90
type: MX
pri: 0
target: gru-com-br.mail.protection.outlook.com

Información TXT
host: gru.com.br
class: IN
ttl: 90
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array