Registro DMARC
v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Registro IPv4
host: fdtsrl.it
class: IN
ttl: 900
type: A
ip: 81.88.53.98

Servidores DNS Principal (mname) y Secundario (rname)
host: fdtsrl.it
class: IN
ttl: 3600
type: SOA
mname: ns1-36.azure-dns.com
rname: azuredns-hostmaster.microsoft.com
serial: 1
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300

Servidor de Correo
host: fdtsrl.it
class: IN
ttl: 900
type: MX
pri: 10
target: fdtsrl-it.mail.protection.outlook.com

Información TXT
host: fdtsrl.it
class: IN
ttl: 300
type: TXT
txt: MS=ms71819111
entries: Array

Información TXT
host: fdtsrl.it
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array