undeerc.org

Valid Email Server

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
undeerc.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-08-03 17:09:07 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

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

MX Priorities

  • undeerc-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 52.234.234.201 (no PTR)

Mail Server IPs

  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.ndus.edu ndus\.dns\.tech.ndus.edu 232 7200 3600 86400 900
Primary NS (mname)
ns1.ndus.edu
Admin Email (rname)
ndus\@dns\.tech.ndus.edu
Serial
232
Refresh
7200s
Retry
3600s
Expire
86400s
Minimum TTL
900s

Nameservers (NS)

ns2.ext.ndus.edu
ns4.az.ndus.edu
ns1.ext.ndus.edu

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:Infosecmail.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;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

✗ 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

17 records
  • amazonses:JyL1EUsXVRU4vHEfVL0UwfZnpDuhb/GZWdXIqQJQrlg=
  • docusign=5bf69ddc-e9b5-45ab-89b7-df45ad0c41d2
  • ms-domain-verification=b1dfcfd5-4ea4-4c64-8db2-7958f9550173
  • openai-domain-verification=dv-phTxKFJLEthJb2vdn7a5yY7u
  • adobe-idp-site-verification=45a444e5decac30e0d670e2ddda11244bf64d0d4e9eb08b75711744f9cb5adb6
  • ggs3sb04l0lq5jnc7gcg7b9p1d
  • _globalsign-domain-verification=HKUQyBY19Zhlv_XW7Xpw7T0BaN_oWhx4WaokkyIsZQ
  • _globalsign-domain-verification=M_AF9wuJl8Xp979YjrF9a8NW_heL0UMTlJipq2TOd8
  • _globalsign-domain-verification=vGNPzlMQEvcvu1TNwI_SuLqwrOhNqSmdGUaHQUVdkq
  • SPFv=spf1 include:spf.protection.outlook.com include:Infosecmail.net -all
  • google-site-verification=pLlA0HxKlNxs1KLtlRGxy-BpHVTZhCIF-nBNg779d6w
  • bw=1ZcPSEuM8CEXIgo1SormY3PhXbT2EProlWUk35V4pCYl
  • google-site-verification=qnw2HpobK6Yr-heHAFxSOEiLJMsVoRSxl4C2Vw44VLA
  • _globalsign-domain-verification=GWIXSyNaHPZJJM_k6FOSnHwCqeVaoTQwEa63vJDzl-
  • _globalsign-domain-verification=G6LG82ehNH24_tF_B1AKgEZB15hNvPzG-HUM7Dhnhp
  • google-site-verification=eo-FIcHpxFc7WcWF-yoyo2A_df6pgDTXWrMB2K41_tU
  • 21ks8ae7tg5ollg80gr69ipqrj
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 undeerc.org

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

No credit card required
Get 1,000 Free Credits