Registro DMARC
v=DMARC1; p=none; rua=mailto:kefu@tencent.sd.cn

Registro IPv4
host: metromach.com
class: IN
ttl: 300
type: A
ip: 104.21.1.176

Registro IPv4
host: metromach.com
class: IN
ttl: 300
type: A
ip: 172.67.129.172

Servidores DNS Principal (mname) y Secundario (rname)
host: metromach.com
class: IN
ttl: 1800
type: SOA
mname: davina.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2416157192
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: metromach.com
class: IN
ttl: 300
type: MX
pri: 10
target: mxbiz2.qq.com

Servidor de Correo
host: metromach.com
class: IN
ttl: 300
type: MX
pri: 5
target: mxbiz1.qq.com

Información TXT
host: metromach.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:spf.mail.qq.com ~all
entries: Array