Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cbrooksconstruct.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 07:18:19 UTC · ↺ Refresh
MX Hostnames
- cbrooksconstruct-com.mail.protection.outlook.com
MX Priorities
- cbrooksconstruct-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.57.139 (no PTR)
- 172.67.164.22 (no PTR)
- 2606:4700:3037::ac43:a416
- 2606:4700:3033::6815:398b
Mail Server IPs
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
hera.ns.cloudflare.com dns.cloudflare.com 2396509447 10000 2400 604800 1800
Primary NS (mname)
hera.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396509447
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kipp.ns.cloudflare.com
hera.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
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 include:mailgun.org ~all
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