iei.tu-clausthal.de

Valid Email Server
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
iei.tu-clausthal.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-04 19:00:40 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

  • b1071.mx.srv.dfn.de
  • a1071.mx.srv.dfn.de
  • c1071.mx.srv.dfn.de

MX Priorities

  • b1071.mx.srv.dfn.de: 10
  • a1071.mx.srv.dfn.de: 10
  • c1071.mx.srv.dfn.de: 10

A / AAAA Records

  • 139.174.32.12 ↩ gimli.rz.tu-clausthal.de
  • 2001:638:605:20:1::c ↩ gimli.rz.tu-clausthal.de

Mail Server IPs

  • 194.95.234.40 ↩ b1071.mx.srv.dfn.de
  • 2001:638:d:c302:acdc:1979:2:9 ↩ b1071.mx.srv.dfn.de
  • 194.95.232.40 ↩ a1071.mx.srv.dfn.de
  • 2001:638:d:c301:acdc:1979:2:9 ↩ a1071.mx.srv.dfn.de
  • 194.95.238.40 ↩ c1071.mx.srv.dfn.de
  • 2001:638:d:c303:acdc:1979:2:9 ↩ c1071.mx.srv.dfn.de

SOA Record

Raw SOA gomorra.rz.tu-clausthal.de hostmaster.tu-clausthal.de 2026080700 10800 3600 604800 10800
Primary NS (mname)
gomorra.rz.tu-clausthal.de
Admin Email (rname)
hostmaster@tu-clausthal.de
Serial
2026080700
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

gomorra.rz.tu-clausthal.de
numerobis.rz.tu-clausthal.de
dns-1.dfn.de
sodom.rz.tu-clausthal.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.tu-clausthal.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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.tu-clausthal.de ~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 · Customize →
See demo & docs
Deep verification
Full email verification for iei.tu-clausthal.de

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

No credit card required
Get 1,000 Free Credits