Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
4cd.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 20:59:47 UTC · ↺ Refresh
MX Hostnames
- 4cd-edu.mail.protection.outlook.com
MX Priorities
- 4cd-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 207.62.211.245 (no PTR)
Mail Server IPs
- 52.101.9.17 (no PTR)
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1616.awsdns-10.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1616.awsdns-10.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-748.awsdns-29.net
ns-1266.awsdns-30.org
ns-1616.awsdns-10.co.uk
ns-189.awsdns-23.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.4cd_edu._d.easydmarc.pro include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;
~ 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
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- _globalsign-domain-verification=KUkgJFlWtgPheQrMYSyDhKKpL47U7ufLnMgM13ztVO
- atlassian-domain-verification=569SJpT3+cnfRDm6ZSBN8b+0hAp8OceMsoXSFHoj4HZoLfoKitRt3AVIMBu9VwAl
- brevo-code:456a81daa5be24f94876d1d2a7f102a2
- knowbe4-site-verification=0bcf4886a722338b0369dc9549123d8e
- v=msv1 t=b5b481930afe4ba00371a54d88d85e
- SPFv=spf1 include:_spf.4cd_edu._d.easydmarc.pro include:_spf.psm.knowbe4.com ~all
Full email verification for 4cd.edu
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