Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:security-dmarc@dust.tt

Registro IPv4
host: dust.help
class: IN
ttl: 10800
type: A
ip: 217.70.184.55

Servidores DNS Principal (mname) y Secundario (rname)
host: dust.help
class: IN
ttl: 63265
type: SOA
mname: ns1.gandi.net
rname: hostmaster.gandi.net
serial: 1779321600
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 10800

Servidor de Correo
host: dust.help
class: IN
ttl: 10800
type: MX
pri: 10
target: spool.mail.gandi.net

Servidor de Correo
host: dust.help
class: IN
ttl: 10800
type: MX
pri: 50
target: fb.mail.gandi.net

Información TXT
host: dust.help
class: IN
ttl: 10800
type: TXT
txt: v=spf1 include:_mailcust.gandi.net ?all
entries: Array