Registro DMARC
v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=dmarc_rua@onsecureserver.net;

Registro IPv4
host: letts.org
class: IN
ttl: 10526
type: A
ip: 198.12.238.170

Servidores DNS Principal (mname) y Secundario (rname)
host: letts.org
class: IN
ttl: 3326
type: SOA
mname: ns13.domaincontrol.com
rname: dns.jomax.net
serial: 2026102101
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: letts.org
class: IN
ttl: 1526
type: MX
pri: 0
target: smtp.secureserver.net

Servidor de Correo
host: letts.org
class: IN
ttl: 1526
type: MX
pri: 10
target: mailstore1.secureserver.net

Información TXT
host: letts.org
class: IN
ttl: 3326
type: TXT
txt: v=spf1 mx include:smtp.secureserver.net include:_spf.google.com  ~all
entries: Array

Información TXT
host: letts.org
class: IN
ttl: 3326
type: TXT
txt: apple-domain=YXHXukzN8ATfwedC
entries: Array

Información TXT
host: letts.org
class: IN
ttl: 3326
type: TXT
txt: v=spf1 include:icloud.com ~all
entries: Array

Información TXT
host: letts.org
class: IN
ttl: 3326
type: TXT
txt: D6179326
entries: Array