Registro DMARC
v=DMARC1; p=none; aspf=r; adkim=r;

Registro IPv4
host: icsb.edu.bd
class: IN
ttl: 68253
type: A
ip: 34.174.64.218

Servidores DNS Principal (mname) y Secundario (rname)
host: icsb.edu.bd
class: IN
ttl: 11544
type: SOA
mname: ns1.siteground.net
rname: admins.siteground.com
serial: 159
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: icsb.edu.bd
class: IN
ttl: 68254
type: MX
pri: 0
target: mx.bol-online.com

Información TXT
host: icsb.edu.bd
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx a a:mail.icsb.edu.bd a:mailx.bol-online.com a:mx.bol-online.com a:mx1.bol-online.com a:mx2.bol-online.com a:mx3.bol-online.com ip4:34.174.64.218 ip4:185.56.86.128 -all
entries: Array

Información TXT
host: icsb.edu.bd
class: IN
ttl: 300
type: TXT
txt: google-site-verification=4Y4mJ8ktWQPXprMh1KtLMjlh8p7WiQ1WP3mXhDcQCH4
entries: Array

Información TXT
host: icsb.edu.bd
class: IN
ttl: 300
type: TXT
txt: v=DMARC1; p=quarantine; rua=mailto:quarantine@icsb.edu.bd; ruf=mailto:quarantine@icsb.edu.bd; fo=0; pct=100; sp=none
entries: Array