Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: tucurenergia.es
class: IN
ttl: 21600
type: SOA
mname: dns.iberdrola.es
rname: please_set_email.absolutely.nowhere
serial: 22
refresh: 3600
retry: 3600
expire: 2419200
minimum-ttl: 900

Servidor de Correo
host: tucurenergia.es
class: IN
ttl: 21600
type: MX
pri: 10
target: inbound-smtp.eu-west-1.amazonaws.com

Información TXT
host: tucurenergia.es
class: IN
ttl: 21600
type: TXT
txt: v=spf1 include:spf.iberdrola.com include:_spf.qualtrics.com -all
entries: Array