Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc.rsa@icrt.cu; ruf=mailto:dmarc.rsa@icrt.cu; fo=1

Servidores DNS Principal (mname) y Secundario (rname)
host: icrt.cu
class: IN
ttl: 21600
type: SOA
mname: osiris.icrt.cu
rname: hostmaster.icrt.cu
serial: 2023071205
refresh: 3600
retry: 1800
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: icrt.cu
class: IN
ttl: 21600
type: MX
pri: 0
target: a.mta.icrt.cu

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

Información TXT
host: icrt.cu
class: IN
ttl: 21600
type: TXT
txt: google-site-verification=UZ_ULjOh7wPcl2GyvphYU3pxqnJsOGW_I7_XZhJ2Gb8
entries: Array

Información TXT
host: icrt.cu
class: IN
ttl: 21600
type: TXT
txt: abuseipdb-verification=KmrbZGne
entries: Array