Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kumon.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 20:04:55 UTC · ↺ Refresh
MX Hostnames
- kumon-com-br.mail.protection.outlook.com
MX Priorities
- kumon-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 23.206.172.10 ↩ a23-206-172-10.deploy.static.akamaitechnologies.com
- 23.206.172.37 ↩ a23-206-172-37.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:32::17d1:4829
- 2600:141b:1c00:32::17d1:4819
Mail Server IPs
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
a1-62.akam.net hostmaster.kumon.com.br.kumon.com.br 2024022486 3600 600 604800 300
Primary NS (mname)
a1-62.akam.net
Admin Email (rname)
hostmaster@kumon.com.br.kumon.com.br
Serial
2024022486
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
a1-62.akam.net
a3-67.akam.net
a12-67.akam.net
a26-64.akam.net
a28-64.akam.net
a11-66.akam.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:mail.zendesk.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- facebook-domain-verification=03ukfxia6wtf1kdxwsftrbj7vz2mc3
- apple-domain-verification=6urpiFVIq4EppvNu
- mandrill_verify.gaiN9hwOdDCa38WkSuObvg
- B07FE28793A690B820822830E1E484788BDE93D2FC0BD77FE8FFC6C9706E2F35
- SPFv=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:mail.zendesk.com -all
- mandrill_verify.wkxzCzujVGOLFTJkAsWchQ
- google-site-verification=50Ve97AlDg0SFXAywf7ebDEocFvNFAK2XVfoBGf4lk0
- 0VOKuJy0P1IE3ZWGz85ZKRzrZMUE80Q3jmob3WVJVbOKPqRbluCysbvScUiy5DCUGYBJB7DBPLX/i15tMC84Lg==
- 6e950e1b72a82380737feb5decf2d7
- google-site-verification=h7zTb_JwwOtK4RuvLlZ3fBx8NKymQxEZdY3SDFsgiPc
- d4sign-domain-verification=6ab8788e-f210-4cf0-bd31-0f503ea62a18
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