Registro DMARC
v=DMARC1; p=none; sp=none; adkim=r; aspf=r

Registro IPv4
host: customservice.it
class: IN
ttl: 10800
type: A
ip: 80.88.86.110

Servidores DNS Principal (mname) y Secundario (rname)
host: customservice.it
class: IN
ttl: 10800
type: SOA
mname: dns.consultingweb.it
rname: postmaster.customservice.it
serial: 2021042001
refresh: 86400
retry: 7200
expire: 2000000
minimum-ttl: 14400

Servidor de Correo
host: customservice.it
class: IN
ttl: 10800
type: MX
pri: 10
target: mail.customservice.it