Registro DMARC
v=DMARC1;p=none;pct=100;rua=mailto:youremailaddress@yourdomain.com;ruf=mailto:youremailaddress@yourdomain.com

Registro IPv4
host: ames.edu.vn
class: IN
ttl: 300
type: A
ip: 76.76.21.21

Servidores DNS Principal (mname) y Secundario (rname)
host: ames.edu.vn
class: IN
ttl: 3600
type: SOA
mname: ns1.matbao.vn
rname: admin.matbao.com
serial: 2024112901
refresh: 7200
retry: 1800
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: ames.edu.vn
class: IN
ttl: 3600
type: MX
pri: 10
target: ALT4.ASPMX.L.GOOGLE.COM