cambridgesecurityservices.com

Valid Email Server
Domain Lookup › cambridgesecurityservices.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cambridgesecurityservices.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 07:55:55 UTC · ↺ Refresh

MX Hostnames

  • cambridgesecurityservices-com.mail.protection.outlook.com

MX Priorities

  • cambridgesecurityservices-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 67.205.25.71 ↩ apache2-kant.iad1-shared-b7-21.dreamhost.com

Mail Server IPs

  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dreamhost.com hostmaster.dreamhost.com 2026022503 18838 600 1814400 60
Primary NS (mname)
ns1.dreamhost.com
Admin Email (rname)
hostmaster@dreamhost.com
Serial
2026022503
Refresh
18838s
Retry
600s
Expire
1814400s
Minimum TTL
60s

Nameservers (NS)

ns3.dreamhost.com
ns2.dreamhost.com
ns1.dreamhost.com

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.mxguardian.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • u0765t2f0nu7fmiaeud2um94v2
  • MS=A863DC4121AF81C1180A02D11A0A4609C7A2F311
  • cgmlchd33ks0kgan8mb5candf8
  • SPFv=spf1 mx include:spf.protection.outlook.com include:spf.mxguardian.net -all
  • MS=ms53306066
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