Registro DMARC
v=DMARC1; p=quarantine;rua=mailto:mailauth-reports@qq.com.

Servidores DNS Principal (mname) y Secundario (rname)
host: hytc.edu.cn
class: IN
ttl: 3420
type: SOA
mname: ns.hytc.edu.cn
rname: admin.example.com
serial: 2100000621
refresh: 10800
retry: 900
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: hytc.edu.cn
class: IN
ttl: 3420
type: MX
pri: 10
target: mxbiz2.qq.com

Servidor de Correo
host: hytc.edu.cn
class: IN
ttl: 3420
type: MX
pri: 5
target: mxbiz1.qq.com

Información TXT
host: hytc.edu.cn
class: IN
ttl: 3421
type: TXT
txt: v=spf1 include:spf.mail.qq.com ~all
entries: Array