Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc.reports.rua@citi.com

Servidores DNS Principal (mname) y Secundario (rname)
host: bancanet.com
class: IN
ttl: 3600
type: SOA
mname: ns1.nsroot1.com
rname: hostmaster.citi.com
serial: 2021094215
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: bancanet.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mailcpx03.banamex.com

Servidor de Correo
host: bancanet.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mailcpx02.banamex.com

Servidor de Correo
host: bancanet.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mailcpx01.banamex.com

Servidor de Correo
host: bancanet.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mailcpx04.banamex.com

Información TXT
host: bancanet.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array