dallascohospital.org

Valid Email Server
Domain Lookup › dallascohospital.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dallascohospital.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 13:14:56 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • dallascohospital-org.mail.protection.outlook.com

MX Priorities

  • dallascohospital-org.mail.protection.outlook.com: 10

A / AAAA Records

  • 23.185.0.3 (no PTR)
  • 2620:12a:8000::3 (no PTR)
  • 2620:12a:8001::3

Mail Server IPs

  • 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
  • 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
  • 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns85.worldnic.com namehost.worldnic.com 126021015 10800 3600 604800 3600
Primary NS (mname)
ns85.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126021015
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns86.worldnic.com
ns85.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 redirect=dallascohospital.org.spf.sophosdmarc.net
📊 DNS lookups: 1/10

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; fo=1:0:d:s; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

7 records
  • duo_sso_verification=2jBVHVOimqX50IcDx2qkoBzHNs6wuzKxzbhnMi2INfsmIi0l6qjZd6LBCHBbo5Vs
  • f3o4hqa3mk2oojt7lbjo87ji73
  • vbdRl6xP697DqX67t8nfgg==
  • sophos-domain-verification=0248f6ae7eb55aeee5f63431389cd7ae7c8635c096f736310bc7d506dea27d2c
  • SPFv=spf1 redirect=dallascohospital.org.spf.sophosdmarc.net
  • MS=5753CC5BB782B3824C69538065EC1F5BF114D1FB
  • 9soqj7qrnb1rva0au0kgh8hf1d
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 · Customize →
See demo & docs
Deep verification
Full email verification for dallascohospital.org

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

No credit card required
Get 1,000 Free Credits