Registro DMARC
v=DMARC1; p=none

Registro IPv4
host: student.7college.du.ac.bd
class: IN
ttl: 11540
type: A
ip: 103.221.252.74


Servidores DNS Principal (mname) y Secundario (rname)
host: student.7college.du.ac.bd
class: IN
ttl: 18740
type: SOA
mname: ns1.ducmc.com
rname: my.email.com
serial: 2025021951
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400


Servidor de Correo
host: student.7college.du.ac.bd
class: IN
ttl: 11540
type: MX
pri: 0
target: student.7college.du.ac.bd
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