Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc@glucotrin.com;ruf=mailto:dmarc@glucotrin.com;adkim=r; aspf=s; pct=100; rf=afrf; ri=86400; sp=reject

Servidores DNS Principal (mname) y Secundario (rname)
host: glucotrin.com
class: IN
ttl: 3600
type: SOA
mname: ns-1240.awsdns-27.org
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: glucotrin.com
class: IN
ttl: 3600
type: MX
pri: 0
target: contact.glucotrin.com

Información TXT
host: glucotrin.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:51.75.157.81 ~all
entries: Array