libertyhc.com

Valid Email Server
Domain Lookup › libertyhc.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 09:52:20 UTC · ↺ Refresh

MX Hostnames

  • libertyhc-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 104.21.84.185 (no PTR)
  • 172.67.195.183 (no PTR)
  • 2606:4700:3032::6815:54b9
  • 2606:4700:3031::ac43:c3b7

Mail Server IPs

  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
  • 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA amos.ns.cloudflare.com dns.cloudflare.com 2396863462 10000 2400 604800 1800
Primary NS (mname)
amos.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396863462
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

piper.ns.cloudflare.com
amos.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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for libertyhc.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits