Servidores DNS Principal (mname) y Secundario (rname)
host: stm-holding.com
class: IN
ttl: 3600
type: SOA
mname: hydrogen.ns.hetzner.com
rname: dns.hetzner.com
serial: 2026080302
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: stm-holding.com
class: IN
ttl: 3600
type: MX
pri: 0
target: stmholding-com0i.mail.protection.outlook.com

Información TXT
host: stm-holding.com
class: IN
ttl: 3600
type: TXT
txt: MS=ms17799640
entries: Array

Información TXT
host: stm-holding.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array