Servidores DNS Principal (mname) y Secundario (rname)
host: tdt.edu.vn
class: IN
ttl: 68055
type: SOA
mname: ns1.tdtu.edu.vn
rname: dhtonducthang.tdtu.edu.vn
serial: 2026032400
refresh: 3600
retry: 1800
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: tdt.edu.vn
class: IN
ttl: 68055
type: MX
pri: 10
target: ALT4.ASPMX.L.GOOGLE.COM

Servidor de Correo
host: tdt.edu.vn
class: IN
ttl: 68055
type: MX
pri: 5
target: ALT2.ASPMX.L.GOOGLE.COM

Servidor de Correo
host: tdt.edu.vn
class: IN
ttl: 68055
type: MX
pri: 1
target: ASPMX.L.GOOGLE.COM

Servidor de Correo
host: tdt.edu.vn
class: IN
ttl: 68055
type: MX
pri: 5
target: ALT1.ASPMX.L.GOOGLE.COM

Servidor de Correo
host: tdt.edu.vn
class: IN
ttl: 68055
type: MX
pri: 10
target: ALT3.ASPMX.L.GOOGLE.COM

Información TXT
host: tdt.edu.vn
class: IN
ttl: 68056
type: TXT
txt: v=spf1 include:_spf.google.com ~all
entries: Array