Servidores DNS Principal (mname) y Secundario (rname)
host: anysubject.com
class: IN
ttl: 86400
type: SOA
mname: ns5.catalyst2.net
rname: alerts.support.catalyst2.com
serial: 2025060400
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: anysubject.com
class: IN
ttl: 14400
type: MX
pri: 10
target: st2.mx.email-filter.net

Servidor de Correo
host: anysubject.com
class: IN
ttl: 14400
type: MX
pri: 10
target: st3.mx.email-filter.net

Información TXT
host: anysubject.com
class: IN
ttl: 14400
type: TXT
txt: v=spf1 +a +mx +ip4:185.136.250.2 ~all
entries: Array