Registro DMARC
v=DMARC1; p=reject; rua=mailto:admincentral@listas.uo.edu.cu; pct=100; adkim=s; aspf=s

Registro IPv4
host: uo.edu.cu
class: IN
ttl: 86400
type: A
ip: 200.55.162.203

Servidores DNS Principal (mname) y Secundario (rname)
host: uo.edu.cu
class: IN
ttl: 86400
type: SOA
mname: proxy1.uo.edu.cu
rname: root.proxy1.uo.edu.cu
serial: 2025050102
refresh: 3600
retry: 900
expire: 1209600
minimum-ttl: 43200

Servidor de Correo
host: uo.edu.cu
class: IN
ttl: 21600
type: MX
pri: 10
target: mx2.uo.edu.cu

Servidor de Correo
host: uo.edu.cu
class: IN
ttl: 21600
type: MX
pri: 10
target: mx1.uo.edu.cu

Información TXT
host: uo.edu.cu
class: IN
ttl: 21600
type: TXT
txt: v=spf1 mx -all
entries: Array