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 ip4:54.39.133.178 ip4:66.241.100.100 ip4:192.99.9.215 ip4:149.56.31.61 ip4:198.27.75.7 ip4:198.27.75.8 ip6:2607:5300:60:1fae::1 -all
entries: Array