Registro DMARC
v=DMARC1; p=reject; sp=none

Servidores DNS Principal (mname) y Secundario (rname)
host: tyc.edu.tw
class: IN
ttl: 300
type: SOA
mname: ns1.tyc.edu.tw
rname: admin.ms.tyc.edu.tw
serial: 2016504227
refresh: 10800
retry: 1080
expire: 604800
minimum-ttl: 900

Información TXT
host: tyc.edu.tw
class: IN
ttl: 300
type: TXT
txt: google-site-verification=fYO2qVmy6ZTFpLUkiTntN4eHzDX2T77LdO5TegWXIp8
entries: Array

Información TXT
host: tyc.edu.tw
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array