Servidores DNS Principal (mname) y Secundario (rname)
host: editorialservices.com
class: IN
ttl: 37102
type: SOA
mname: kyindxmmexternal.cengage.net
rname: hostmaster.editorialservices.com
serial: 2025031902
refresh: 28800
retry: 7200
expire: 1036800
minimum-ttl: 7200

Información TXT
host: editorialservices.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array