Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc@opt.pt

Registro IPv4
host: opt.pt
class: IN
ttl: 900
type: A
ip: 151.236.35.102

Servidores DNS Principal (mname) y Secundario (rname)
host: opt.pt
class: IN
ttl: 900
type: SOA
mname: ns1.amenworld.com
rname: root.amen.fr
serial: 2022072904
refresh: 86400
retry: 7200
expire: 2592000
minimum-ttl: 300

Servidor de Correo
host: opt.pt
class: IN
ttl: 900
type: MX
pri: 10
target: mxc.ptempresas.pt

Servidor de Correo
host: opt.pt
class: IN
ttl: 900
type: MX
pri: 20
target: opt-pt.mail.protection.outlook.com

Información TXT
host: opt.pt
class: IN
ttl: 900
type: TXT
txt: MS=ms86937978
entries: Array

Información TXT
host: opt.pt
class: IN
ttl: 900
type: TXT
txt: v=spf1 a mx include:spf.protection.outlook.com include:_spf.kmitd.com -all
entries: Array