Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:webmaster@ismm.edu.cu; ruf=mailto:webmaster@ismm.edu.cu; fo=1; pct=100

Servidores DNS Principal (mname) y Secundario (rname)
host: ismm.edu.cu
class: IN
ttl: 21600
type: SOA
mname: proxy.ismm.edu.cu
rname: root.ismm.edu.cu
serial: 2025051113
refresh: 3600
retry: 600
expire: 86400
minimum-ttl: 600

Servidor de Correo
host: ismm.edu.cu
class: IN
ttl: 21600
type: MX
pri: 1
target: laterita.ismm.edu.cu

Información TXT
host: ismm.edu.cu
class: IN
ttl: 21600
type: TXT
txt: v=spf1 mx a ip4:200.14.55.70 ip4:200.14.55.85 ~all
entries: Array

Información TXT
host: ismm.edu.cu
class: IN
ttl: 21600
type: TXT
txt: google-site-verification=YaIoVOvrYnsfO8YbYQ6UAP91A5GNiEvVteEZcIhWzKk
entries: Array