Registro DMARC
v=DMARC1; p=none; rua=mailto:abuse@ml.castmm.com;

Registro IPv4
host: ml.castmm.com
class: IN
ttl: 3600
type: A
ip: 54.39.133.178

Servidor de Correo
host: ml.castmm.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mailer.castmm.com

Información TXT
host: ml.castmm.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 ip4:198.27.75.7 ip4:15.235.29.122 ip4:15.235.39.248 ip4:15.235.39.250 -all
entries: Array