Registro DMARC
v=DMARC1; p=reject; rua=mailto:for@f3w.net

Registro IPv4
host: f3w.net
class: IN
ttl: 21600
type: A
ip: 64.71.160.164

Servidores DNS Principal (mname) y Secundario (rname)
host: f3w.net
class: IN
ttl: 600
type: SOA
mname: a.dnsjar.net
rname: domain.miragespace.com
serial: 2021061900
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: f3w.net
class: IN
ttl: 21600
type: MX
pri: 20
target: mailsec.protonmail.ch

Servidor de Correo
host: f3w.net
class: IN
ttl: 21600
type: MX
pri: 10
target: mail.protonmail.ch

Información TXT
host: f3w.net
class: IN
ttl: 21600
type: TXT
txt: protonmail-verification=bc951666c5ad73d44e33caa2bf29db6df226f266
entries: Array

Información TXT
host: f3w.net
class: IN
ttl: 21600
type: TXT
txt: v=spf1 include:_spf.protonmail.ch mx ~all
entries: Array