cbsolutions.com

Valid Email Server
Domain Lookup › cbsolutions.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cbsolutions.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 14:24:50 UTC · ↺ Refresh

MX Hostnames

  • cbsolutions-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 172.67.165.249 (no PTR)
  • 104.21.16.23 (no PTR)
  • 2606:4700:3031::6815:1017
  • 2606:4700:3037::ac43:a5f9

Mail Server IPs

  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA lina.ns.cloudflare.com dns.cloudflare.com 2399712784 10000 2400 604800 1800
Primary NS (mname)
lina.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399712784
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

lina.ns.cloudflare.com
mike.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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