Servidores DNS Principal (mname) y Secundario (rname)
host: sdfenc.com
class: IN
ttl: 234
type: SOA
mname: ns1.dothome.co.kr
rname: abuse.anysecure.com
serial: 1553767756
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: sdfenc.com
class: IN
ttl: 235
type: MX
pri: 10
target: securemx01.msgsys.net

Servidor de Correo
host: sdfenc.com
class: IN
ttl: 235
type: MX
pri: 20
target: securemx02.msgsys.net

Información TXT
host: sdfenc.com
class: IN
ttl: 235
type: TXT
txt: v=spf1 mx include:mailplug.com ~all
entries: Array