gdr.mx

Valid Email Server
Domain Lookup › gdr.mx

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gdr.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 21:02:58 UTC · ↺ Refresh

MX Hostnames

  • gdr-mx.mail.protection.outlook.com

MX Priorities

  • gdr-mx.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.91.1 ↩ mail-ma4p292cu00201.inbound.protection.outlook.com
  • 52.101.91.0 ↩ mail-ma2p292cu00400.inbound.protection.outlook.com
  • 52.101.91.3 ↩ mail-ma2p292cu00303.inbound.protection.outlook.com
  • 52.101.91.2 ↩ mail-ma3p292cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca21:: ↩ mail-ma2p292cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::3 ↩ mail-ma2p292cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::2 ↩ mail-ma3p292cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::1 ↩ mail-ma4p292cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.cdmon.net hostmaster.gdr.mx 2025062624 10800 3600 604800 3600
Primary NS (mname)
ns1.cdmon.net
Admin Email (rname)
hostmaster@gdr.mx
Serial
2025062624
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns2.cdmon.net
ns4.cdmondns-01.org
ns1.cdmon.net
ns5.cdmondns-01.com
ns3.cdmon.net

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: 392 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

3 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms44791147
  • MS=06E1F57B0055F27F7FF82164EDBDCF94DC452B76
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