Servidores DNS Principal (mname) y Secundario (rname)
host: pc-sis.com
class: IN
ttl: 9235
type: SOA
mname: pc-sis.com
rname: postmaster.pc-sis.com
serial: 2026013001
refresh: 28800
retry: 14400
expire: 3600
minimum-ttl: 86400

Servidor de Correo
host: pc-sis.com
class: IN
ttl: 9234
type: MX
pri: 10
target: dns1.pc-sis.com

Información TXT
host: pc-sis.com
class: IN
ttl: 9236
type: TXT
txt: v=spf1 +ip4:210.196.222.32/27 ~all
entries: Array