Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
wolkenburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-25 02:44:25 UTC · ↺ Refresh
MX Hostnames
- mx01.ionos.de
- mx00.ionos.de
MX Priorities
- mx01.ionos.de: 10
- mx00.ionos.de: 10
A / AAAA Records
- 185.175.196.120 (no PTR)
- 2a00:1c98:60:1161::7c58:7574 (no PTR)
Mail Server IPs
- 217.72.192.67 ↩ mx01.kundenserver.de
- 212.227.15.41 ↩ mx00.kundenserver.de
SOA Record
Raw SOA
ns1033.ui-dns.biz hostmaster.1und1.de 2017052230 28800 7200 604800 300
Primary NS (mname)
ns1033.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2017052230
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1033.ui-dns.com
ns1033.ui-dns.org
ns1033.ui-dns.de
ns1033.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 a include:servers.mcsv.net include:turbo-smtp.com include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kundenserver.de ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;pct=100;adkim=r;aspf=r;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
7 records- 81cvp80bd5se5d1q689pj6s0mk
- qubh86s9dq7k2ims79nk8hu94d
- siihcar33q04d1n0sehige79dr
- sig11acve0pn8pi9upl5neq2s9
- SPFv=spf1 a include:servers.mcsv.net include:turbo-smtp.com include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kundenserver.de ~all
- tf9c641upf92m34u3eule65vn3
- kvffu5mlcemkhlperlb7qa6bb0
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 wolkenburg.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits