Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@cck.rnu.tn; ruf=mailto:dmarc-rapport@cck.rnu.tn; sp=quarantine

Servidores DNS Principal (mname) y Secundario (rname)
host: iscenf.rnu.tn
class: IN
ttl: 21600
type: SOA
mname: ipamaster.rnu.tn
rname: hostmaster.iscenf.rnu.tn
serial: 1716691512
refresh: 3600
retry: 900
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: iscenf.rnu.tn
class: IN
ttl: 21600
type: MX
pri: 50
target: mx2cck.ingw.tn

Servidor de Correo
host: iscenf.rnu.tn
class: IN
ttl: 21600
type: MX
pri: 10
target: mx1cck.ingw.tn

Información TXT
host: iscenf.rnu.tn
class: IN
ttl: 21600
type: TXT
txt: v=spf1 include:_author.cck.rnu.tn
entries: Array