Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc_agg_rep@libero.it,mailto:dmarc_agg@auth.returnpath.net;

Servidores DNS Principal (mname) y Secundario (rname)
host: dvesrl.com
class: IN
ttl: 3600
type: SOA
mname: ns1.register.it
rname: hostmaster.register.it
serial: 2022012501
refresh: 28800
retry: 300
expire: 1209600
minimum-ttl: 900

Servidor de Correo
host: dvesrl.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.liberobusiness.iol.it

Información TXT
host: dvesrl.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:213.209.8.0/21 -all
entries: Array