Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
clubdau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 14:41:41 UTC · ↺ Refresh
MX Hostnames
- mx00.kundenserver.de
- mx01.kundenserver.de
MX Priorities
- mx00.kundenserver.de: 10
- mx01.kundenserver.de: 10
A / AAAA Records
- 217.160.123.120 ↩ clienthosting.eu
- 2001:8d8:1001:5055:e0a2:5ce:7f5b:8828 ↩ kundenserver.de
Mail Server IPs
- 212.227.15.41 ↩ mx00.kundenserver.de
- 217.72.192.67 ↩ mx01.kundenserver.de
SOA Record
Raw SOA
access.ui-dns.biz hostmaster.kundenserver.de 2017011802 28800 7200 604800 300
Primary NS (mname)
access.ui-dns.biz
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017011802
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
access.ui-dns.com
access.ui-dns.de
access.ui-dns.biz
access.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 a:mout.kundenserver.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
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
1 record- SPFv=spf1 a:mout.kundenserver.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
See demo & docs
Deep verification
Full email verification for clubdau.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits