hdh.org

Valid Email Server
Domain Lookup › hdh.org
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
hdh.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-04 17:37:13 UTC · ↺ Refresh

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MX Hostnames

  • d134990b.ess.barracudanetworks.com
  • d134990a.ess.barracudanetworks.com

MX Priorities

  • d134990a.ess.barracudanetworks.com: 10
  • d134990b.ess.barracudanetworks.com: 10

A / AAAA Records

  • 50.57.246.26 (no PTR)

Mail Server IPs

  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com
  • 209.222.82.252 ↩ mail.ess.barracuda.com

SOA Record

Raw SOA ns75.worldnic.com namehost.worldnic.com 126070808 10800 3600 604800 3600
Primary NS (mname)
ns75.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126070808
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns76.worldnic.com
ns75.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:hdh-org.spf.smtp25.com include:%{ir}.%{v}.trihealth.com.spf.has.pphosted.com ip4:173.249.134.11 ip4:173.249.134.6 ip4:205.220.166.148 ip4:205.220.178.148 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

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

13 records
  • jamf-site-verification=nyW-1h3DkdifTpCDojFajQ
  • MS=364C4BF506407FF4FCCB05E5D488A5397B4F73C2
  • google-site-verification=q6BKOVee3Q2_q6XhYT7lBAXlmdtgzA9FH8zaSMHC5FU
  • tll8cke2ofk1st0u1uf99u9h16
  • sophos-domain-verification=bd8a48914bd38bc03ce2aaaa361621feb1fe00214cb88f4d36afc227e9c43c0c
  • ZA=DvYwIteaojkFBX4fT7OyEA==
  • bw=ffE1KsErrXFtPtPiYepG9ith1zCdElhRj2U7kckXyRu6
  • barracuda-domain-verification=6071438cdff728858f4e554fdcd5e54f
  • SPFv=spf1 include:hdh-org.spf.smtp25.com include:%{ir}.%{v}.trihealth.com.spf.has.pphosted.com ip4:173.249.134.11 ip4:173.249.134.6 ip4:205.220.166.148 ip4:205.220.178.148 -all
  • apple-domain-verification=NqRBmLJc1eqw4emO
  • cvCFanUYu+Y5EyQZXdbyvQ==
  • kim85qf3796kcgjn0pl493oddv
  • knowbe4-site-verification=a085f85004500c888b2a1d5241704f80
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