bluenorthernbuilders.com

Valid Email Server
Domain Lookup › bluenorthernbuilders.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 17:49:32 UTC · ↺ Refresh

MX Hostnames

  • bluenorthernbuilders-com.mail.protection.outlook.com

MX Priorities

  • bluenorthernbuilders-com.mail.protection.outlook.com: 5

A / AAAA Records

  • 69.16.221.244 ↩ esmartsecurehost317.internetwebbuilders.com

Mail Server IPs

  • 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns2.no-ip.com hostmaster.no-ip.com 2023080701 10800 1800 604800 1800
Primary NS (mname)
ns2.no-ip.com
Admin Email (rname)
hostmaster@no-ip.com
Serial
2023080701
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns5.no-ip.com
ns1.no-ip.com
ns2.no-ip.com
ns3.no-ip.com
ns4.no-ip.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:135.26.153.90/31 ip4:135.26.153.92/32 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
✓ 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 ip4:135.26.153.90/31 ip4:135.26.153.92/32 include:spf.protection.outlook.com -all
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