Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc.aggregate.reports@at.gov.pt; ruf=mailto:dmarc.forensic.reports@at.gov.pt;

Servidores DNS Principal (mname) y Secundario (rname)
host: portaldasfinancas.gov.pt
class: IN
ttl: 300
type: SOA
mname: ns1.at.gov.pt
rname: hostmaster.at.gov.pt
serial: 2026090412
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300

Servidor de Correo
host: portaldasfinancas.gov.pt
class: IN
ttl: 3600
type: MX
pri: 0
target: 

Información TXT
host: portaldasfinancas.gov.pt
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array

Información TXT
host: portaldasfinancas.gov.pt
class: IN
ttl: 300
type: TXT
txt: 3q8ch5v4h4x36wn6nq8yd5n42cryj2jd
entries: Array

Información TXT
host: portaldasfinancas.gov.pt
class: IN
ttl: 300
type: TXT
txt: _fqqb7bfyyquwv4izzdbayv1byc5yobs
entries: Array

Información TXT
host: portaldasfinancas.gov.pt
class: IN
ttl: 300
type: TXT
txt: mtc=NzE1NWNiNzctOGI2Mi00NGM4LTg4NzktOWNjZjMwZjM0NmI3
entries: Array