Registro DMARC
v=spf1 mx ~all

Registro IPv4
host: thptlichhoithuong.edu.vn
class: IN
ttl: 683
type: A
ip: 103.138.88.18

Servidores DNS Principal (mname) y Secundario (rname)
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: SOA
mname: ns1.matbao.vn
rname: admin.matbao.com
serial: 2020112501
refresh: 7200
retry: 1800
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: MX
pri: 10
target: mx.emailserver.vn

Servidor de Correo
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: MX
pri: 30
target: aspmx2.googlemail.com

Servidor de Correo
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: MX
pri: 10
target: aspmx.l.google.com

Servidor de Correo
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: MX
pri: 20
target: alt1.aspmx.l.google.com

Servidor de Correo
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: MX
pri: 30
target: aspmx3.googlemail.com

Servidor de Correo
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: MX
pri: 20
target: alt2.aspmx.l.google.com

Información TXT
host: thptlichhoithuong.edu.vn
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx ~all
entries: Array