Servidores DNS Principal (mname) y Secundario (rname)
host: 57689.com
class: IN
ttl: 180
type: SOA
mname: ns17.xincache.com
rname: enterprise1dnsadmin.dnspod.com
serial: 1667795724
refresh: 3600
retry: 180
expire: 1209600
minimum-ttl: 180

Servidor de Correo
host: 57689.com
class: IN
ttl: 600
type: MX
pri: 10
target: mxdomain.qq.com

Información TXT
host: 57689.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.mail.qq.com ~all
entries: Array