Registro DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s

Registro IPv4
host: dunderdonworkwear.it
class: IN
ttl: 86400
type: A
ip: 188.166.96.90

Servidores DNS Principal (mname) y Secundario (rname)
host: dunderdonworkwear.it
class: IN
ttl: 86400
type: SOA
mname: ns.zxcs.nl
rname: hostmaster.dunderdonworkwear.it
serial: 2021010100
refresh: 600
retry: 3600
expire: 1209600
minimum-ttl: 86400

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