Registro DMARC
v=spf1 mx include:spf.ecounterp.com ~all

Registro IPv4
host: cnkoptics.com
class: IN
ttl: 1800
type: A
ip: 203.245.24.28

Servidores DNS Principal (mname) y Secundario (rname)
host: cnkoptics.com
class: IN
ttl: 1800
type: SOA
mname: cnkoptics.com
rname: postmaster.cnkoptics.com
serial: 20210305
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: cnkoptics.com
class: IN
ttl: 1800
type: MX
pri: 10
target: wmx.ecounterp.com

Información TXT
host: cnkoptics.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 mx include:spf.ecounterp.com ~all
entries: Array