Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:webmaster@ndt.org; pct=100; adkim=s; aspf=s

Registro IPv4
host: ndt.org
class: IN
ttl: 300
type: A
ip: 20.55.50.209

Servidores DNS Principal (mname) y Secundario (rname)
host: ndt.org
class: IN
ttl: 900
type: SOA
mname: ns-1761.awsdns-28.co.uk
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: ndt.org
class: IN
ttl: 300
type: MX
pri: 1
target: smtp.google.com

Información TXT
host: ndt.org
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.google.com include:sendgrid.net -allgoogle-site-verification=or6h2AKEngTQFJplG4hZyA64pIJD9f8lY7NHbRhJ1zA
entries: Array