Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
collawnconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 06:09:36 UTC · ↺ Refresh
MX Hostnames
- collawnconstruction-com.mail.protection.outlook.com
MX Priorities
- collawnconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 185.146.167.201 (no PTR)
- 2a07:7800::217 (no PTR)
Mail Server IPs
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.hipsterserver.com hostmaster.stackdns.com 1734387476 1800 900 1209600 300
Primary NS (mname)
ns1.hipsterserver.com
Admin Email (rname)
hostmaster@stackdns.com
Serial
1734387476
Refresh
1800s
Retry
900s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns3.hipsterserver.com
ns4.hipsterserver.com
ns1.hipsterserver.com
ns2.hipsterserver.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.stackmail.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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:spf.stackmail.com -all
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