gdc-co.com

Valid Email Server
Domain Lookup › gdc-co.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gdc-co.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 18:28:16 UTC · ↺ Refresh

MX Hostnames

  • gdcco-com0i.mail.protection.outlook.com

MX Priorities

  • gdcco-com0i.mail.protection.outlook.com: 10

A / AAAA Records

  • 141.193.213.21 (no PTR)
  • 141.193.213.20 (no PTR)

Mail Server IPs

  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.domaindiscover.com hostmaster.tierra.net 2025082206 7200 1800 604800 28800
Primary NS (mname)
ns1.domaindiscover.com
Admin Email (rname)
hostmaster@tierra.net
Serial
2025082206
Refresh
7200s
Retry
1800s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns1.domaindiscover.com
ns2.domaindiscover.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

✓ 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

5 records
  • MS=ms19822406
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • apple-domain-verification=xKgdo9BpRk5zpE6f
  • 67w5fccbsybcrng5swgf4j4jfy4c71vz
  • google-site-verification=3QsBGyZa9KkSQU7O9mSGAqQMIe4fKi7ODmkDD8JnrKc
Full email verification for gdc-co.com

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