gcolumbia.com

Valid Email Server
Domain Lookup › gcolumbia.com

Domain Overview

DNS: ✓ 19d ago Checker: ✓ 19d ago
gcolumbia.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 21:24:30 UTC · ↺ Refresh

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MX Hostnames

  • gcolumbia-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 187.191.84.24 ↩ cust-187-191-84-24.triara.com

Mail Server IPs

  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA ns.gcolumbia.com admin.gcolumbia.com 2007111704 86400 7200 604800 3600
Primary NS (mname)
ns.gcolumbia.com
Admin Email (rname)
admin@gcolumbia.com
Serial
2007111704
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns.gcolumbia.com
ns.gcolumbia.com

SPF Record

✓ Strict (-all)
v=spf1 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

✗ None detected

No 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

7 records
  • MS=ms33054310
  • google-site-verification=_ii4_EFcse8I2Up276YgOMRzBTBLUWZpHo7xwxIy9yc
  • ZOOM_verify_osTmcDnios7PdDMiVgUpVE
  • f75qd3g8hd9niblldd0gfescr4
  • adobe-idp-site-verification=3bb5ba3779dfb3f1279d9233adbff71faadaa4291d09fa9da0e98c1b7b103f9f
  • v04rumun1pnhn3rdns0h4ekce8
  • SPFv=spf1 include:spf.protection.outlook.com -all
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