Registro DMARC
v=DMARC1;p=reject;sp=reject;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;adkim=s;aspf=s

Registro IPv4
host: mail.eniplenitude.es
class: IN
ttl: 21600
type: A
ip: 185.91.136.21

Registro CNAME (Alias)
host: smtp.eniplenitude.es
class: IN
ttl: 21600
type: CNAME
target: mail.eniplenitude.es

Información TXT
host: mail.eniplenitude.es
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array

Registro CNAME (Alias)
host: smtp.eniplenitude.es
class: IN
ttl: 21599
type: CNAME
target: mail.eniplenitude.es