gdcmech.com

Valid Email Server
Domain Lookup › gdcmech.com

Domain Overview

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

Checked via [email protected] · 2026-03-28 16:09:34 UTC · ↺ Refresh

MX Hostnames

  • gdcmech-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 213.165.91.207 ↩ ip213-165-91-207.pbiaas.com

Mail Server IPs

  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:46.43.3.77 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

6 records
  • fvg5nmalngjpi3eenu0s8rfsul
  • MS=ms15225947
  • qdu1ntu19klohvis7kreied7lp
  • mscid=FQw8nP8GmOL4OsT4kRPydCXTNCtq45OgXNX36rUrqutsx/PfQJBaO0UBl/dMJJ4E0EHZIh4dqYQ3sl0FtcKCsg==
  • SPFv=spf1 ip4:46.43.3.77 include:spf.protection.outlook.com -all
  • o793fuhkahidhsooa6ccel6ufm
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