coloradopubco.com

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-19 07:04:14 UTC · ↺ Refresh

MX Hostnames

  • coloradopubco-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 151.101.1.75 (no PTR)

Mail Server IPs

  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns51.domaincontrol.com dns.jomax.net 2024050801 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024050801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns52.domaincontrol.com
ns51.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing
v=DMARC1; p=policy; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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

4 records
  • NETORGFT1040297.onmicrosoft.com
  • SPFv=spf1 include:secureserver.net -all
  • google-site-verification=6HLxS8vyKIggVcTbXO2uHFo38Mor_V_W8nhDtCtO83Q
  • google-site-verification=Xx2BWW1fCEZeAsCARcJaSCvZVyLot5reWLUF7FGuDqM
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