Servidores DNS Principal (mname) y Secundario (rname)
host: xlsteel.biz
class: IN
ttl: 3862
type: SOA
mname: NS1.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 118100207
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: xlsteel.biz
class: IN
ttl: 262
type: MX
pri: 10
target: xlsteel-biz.mail.protection.outlook.com

Información TXT
host: xlsteel.biz
class: IN
ttl: 262
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array