Registro DMARC
v=DMARC1; p=reject;

Servidores DNS Principal (mname) y Secundario (rname)
host: ksbb.com
class: IN
ttl: 2972
type: SOA
mname: ns1.namecity.com
rname: hostmaster.namecity.com
serial: 2026041400
refresh: 43200
retry: 1800
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: ksbb.com
class: IN
ttl: 20972
type: MX
pri: 10
target: eu-smtp-inbound-1.mimecast.com

Servidor de Correo
host: ksbb.com
class: IN
ttl: 20972
type: MX
pri: 20
target: eu-smtp-inbound-2.mimecast.com

Información TXT
host: ksbb.com
class: IN
ttl: 20972
type: TXT
txt: v=spf1 -all
entries: 

Información TXT
host: ksbb.com
class: IN
ttl: 20972
type: TXT
txt: MS=ms76056479
entries: