Registro DMARC
v=DMARC1; p=none

Registro IPv4
host: student.7college.du.ac.bd
class: IN
ttl: 6793
type: A
ip: 103.221.255.46

Servidores DNS Principal (mname) y Secundario (rname)
host: student.7college.du.ac.bd
class: IN
ttl: 6540
type: SOA
mname: ns1.duecoserver.com
rname: postmaster.student.7college.du.ac.bd
serial: 2023102329
refresh: 3600
retry: 7200
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: student.7college.du.ac.bd
class: IN
ttl: 14400
type: MX
pri: 0
target: student.7college.du.ac.bd

Información TXT
host: student.7college.du.ac.bd
class: IN
ttl: 14400
type: TXT
txt: v=spf1+a+mx+ip4:103.221.255.46~all
entries: Array