Registro DMARC
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:3m@rua.dmp.cisco.com; ruf=mailto:3m@ruf.dmp.cisco.com

Registro IPv4
host: postitroma.it
class: IN
ttl: 90
type: A
ip: 3.128.125.100

Registro IPv4
host: postitroma.it
class: IN
ttl: 90
type: A
ip: 3.21.13.78

Servidores DNS Principal (mname) y Secundario (rname)
host: postitroma.it
class: IN
ttl: 1800
type: SOA
mname: a.ns.3m.com
rname: dns.cloudflare.com
serial: 2359593018
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Información TXT
host: postitroma.it
class: IN
ttl: 86400
type: TXT
txt: v=spf1 -all
entries: Array