holtmcduffeeramsey.com

Valid Email Server
Domain Lookup › holtmcduffeeramsey.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 06:43:13 UTC · ↺ Refresh

MX Hostnames

  • holtmcduffeeramsey-com.mail.protection.outlook.com

MX Priorities

  • holtmcduffeeramsey-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 54.148.47.112 ↩ ec2-54-148-47-112.us-west-2.compute.amazonaws.com

Mail Server IPs

  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com

SOA Record

Raw SOA ns61.worldnic.com namehost.worldnic.com 124052213 10800 3600 604800 3600
Primary NS (mname)
ns61.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
124052213
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns61.worldnic.com
ns62.worldnic.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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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