Servidores DNS Principal (mname) y Secundario (rname)
host: xuanzhang.com
class: IN
ttl: 3600
type: SOA
mname: ns1.planetdomain.com
rname: abuse.planetdomain.com
serial: 2026030405
refresh: 14400
retry: 7200
expire: 3600000
minimum-ttl: 172800

Servidor de Correo
host: xuanzhang.com
class: IN
ttl: 3600
type: MX
pri: 10
target: www.xuanzhang.com