Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ksk-herzogtum-lauenburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 07:23:52 UTC · ↺ Refresh
MX Hostnames
- r01es.mail.s-web.de
- q01es.mail.s-web.de
- q02es.mail.s-web.de
- r02es.mail.s-web.de
MX Priorities
- r01es.mail.s-web.de: 10
- q02es.mail.s-web.de: 10
- q01es.mail.s-web.de: 10
- r02es.mail.s-web.de: 10
A / AAAA Records
- 62.181.151.8 (no PTR)
Mail Server IPs
- 62.181.146.48 ↩ r01es.mail.s-web.de
- 62.181.146.47 ↩ q02es.mail.s-web.de
- 62.181.146.46 ↩ q01es.mail.s-web.de
- 62.181.146.49 ↩ r02es.mail.s-web.de
SOA Record
Raw SOA
ns1.s-fg-net.de domreg.f-i.de 33 10800 3600 2419200 1800
Primary NS (mname)
ns1.s-fg-net.de
Admin Email (rname)
domreg@f-i.de
Serial
33
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
1800s
Nameservers (NS)
ns4.s-fg-net.de
ns2.s-fg-net.com
ns1.s-fg-net.de
ns3.s-fg-net.eu
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
1 record- cisco-ci-domain-verification=4cade2f528f54dd23b47196f78b0c6cf1261ba1a5c2ae11ff43f44d29e10f597
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 ksk-herzogtum-lauenburg.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits