Servidores DNS Principal (mname) y Secundario (rname)
host: esisa.es
class: IN
ttl: 21600
type: SOA
mname: ns1125.ui-dns.de
rname: hostmaster.1und1.com
serial: 2017060126
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: esisa.es
class: IN
ttl: 3600
type: MX
pri: 10
target: mx01.ionos.es

Servidor de Correo
host: esisa.es
class: IN
ttl: 3600
type: MX
pri: 10
target: mx00.ionos.es

Información TXT
host: esisa.es
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:_spf-eu.ionos.com ~all
entries: Array