Registro DMARC
v=DMARC1; p=quarantine

Servidores DNS Principal (mname) y Secundario (rname)
host: inatec.edu.ni
class: IN
ttl: 900
type: SOA
mname: ns1.tecnacional.edu.ni
rname: hostmaster.tecnacional.edu.ni
serial: 2023090704
refresh: 10800
retry: 3600
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: inatec.edu.ni
class: IN
ttl: 900
type: MX
pri: 0
target: mail.inatec.edu.ni

Información TXT
host: inatec.edu.ni
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a mx ip4:165.98.243.8 -all
entries: Array