lockdoc.com

Valid Email Server
Domain Lookup › lockdoc.com

Domain Overview

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

Checked via [email protected] · 2026-03-25 04:31:12 UTC · ↺ Refresh

MX Hostnames

  • lockdoc-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 104.21.86.39 (no PTR)
  • 172.67.214.126 (no PTR)
  • 2606:4700:3032::6815:5627
  • 2606:4700:3037::ac43:d67e

Mail Server IPs

  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f903:: (no PTR)
  • 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA martin.ns.cloudflare.com dns.cloudflare.com 2395599772 10000 2400 604800 1800
Primary NS (mname)
martin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2395599772
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

sima.ns.cloudflare.com
martin.ns.cloudflare.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

2 records
  • mscid=8BJpZN/bbMq481/uoXlCT4p4iGdMEPJs5546GXyY/pvqJZv+u/T60/k5LIVRgduEnE5pxCDczE+/XwqIkDslHQ==
  • SPFv=spf1 include:spf.protection.outlook.com -all
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