Registro DMARC
v=DMARC1; p=reject; sp=none; rua=mailto:admin@tucbbs.com.ar; ruf=mailto:admin@tucbbs.com.ar; rf=afrf; pct=100; ri=86400

Servidores DNS Principal (mname) y Secundario (rname)
host: tucumail.com.ar
class: IN
ttl: 3600
type: SOA
mname: dns1.tucbbs.com.ar
rname: hostmaster.tucbbs.com.ar
serial: 80
refresh: 3600
retry: 600
expire: 86400
minimum-ttl: 3600

Servidor de Correo
host: tucumail.com.ar
class: IN
ttl: 3600
type: MX
pri: 5
target: mx.tucbbs.com.ar

Información TXT
host: tucumail.com.ar
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx a:smtp.tucbbs.com.ar a:smtp2.tucbbs.com.ar a:smtp3.tucbbs.com.ar a:smtp-facturacion.tucbbs.com.ar a:smtp10.tucbbs.com.ar a:smtp11.tucbbs.com.ar ip4:131.161.236.10 ip4:131.161.236.11 ip4:131.161.236.26 ip4:131.161.236.37 ip4:131.161.236.38 ip4:131.161.236.91 ip4:131.161.236.92 ip4:131.161.236.20 -all
entries: Array

Información TXT
host: tucumail.com.ar
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=EVDVKotdzGxZVjmDBC7hBilV9yZVEXBBMqyS2UlK4gY
entries: Array