coulsonoil.com

Valid Email Server
Domain Lookup › coulsonoil.com

Domain Overview

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

Checked via [email protected] · 2026-03-25 19:14:01 UTC · ↺ Refresh

MX Hostnames

  • coulsonoil-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 69.40.219.211 (no PTR)

Mail Server IPs

  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns51.domaincontrol.com dns.jomax.net 2025091102 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025091102
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns52.domaincontrol.com
ns51.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:206.222.191.144 include:spf.protection.outlook.com include:mail.zendesk.com exists:%{i}._spf.inkyphishfence.com -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

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1

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

All TXT Records

4 records
  • b7k53migaar6ct5plgp8uc4mr4
  • apple-domain-verification=AgaZQxe4OPRxLOeo
  • SPFv=spf1 ip4:206.222.191.144 include:spf.protection.outlook.com include:mail.zendesk.com exists:%{i}._spf.inkyphishfence.com -all
  • flatv2cbg46q73oik26irpftpm
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