Servidores DNS Principal (mname) y Secundario (rname)
host: com.mx
class: IN
ttl: 86400
type: SOA
mname: m.mx-ns.mx
rname: hostmaster.nic.mx
serial: 1793062780
refresh: 900
retry: 900
expire: 604800
minimum-ttl: 1800

Información TXT
host: com.mx
class: IN
ttl: 86400
type: TXT
txt: v=spf1 -all
entries: Array