Registro DMARC
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:_dmarc@nimbus-cloud.com; ruf=mailto:_dmarc@nimbus-cloud.com; fo=1; aspf=r

Servidores DNS Principal (mname) y Secundario (rname)
host: nimbus-cloud.com
class: IN
ttl: 21600
type: SOA
mname: ns1.markmonitor.com
rname: hostmaster.markmonitor.com
serial: 2025041708
refresh: 86400
retry: 3600
expire: 2592000
minimum-ttl: 172800

Servidor de Correo
host: nimbus-cloud.com
class: IN
ttl: 21600
type: MX
pri: 0
target: inbound-smtp.eu-west-1.amazonaws.com

Información TXT
host: nimbus-cloud.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 include:amazonses.com -all
entries: Array