Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kzv-karlsruhe.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 02:08:13 UTC · ↺ Refresh
MX Hostnames
- mxin02.versatel.de
- mail.kzv-karlsruhe.de
- mxin01.versatel.de
MX Priorities
- mxin01.versatel.de: 50
- mail.kzv-karlsruhe.de: 30
- mxin02.versatel.de: 40
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 89.245.133.7 (no PTR)
- 195.226.120.219 ↩ mail.bzk-karlsruhe.de
SOA Record
Raw SOA
ns01.versatel.de hostmaster.versatel.de 2008010200 10000 3600 604800 86400
Primary NS (mname)
ns01.versatel.de
Admin Email (rname)
hostmaster@versatel.de
Serial
2008010200
Refresh
10000s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns01.versatel.de
ns02.versatel.de
ns03.versatel.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
No TXT records found.
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 kzv-karlsruhe.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits