Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optik-lorenz-zwickau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 09:26:42 UTC · ↺ Refresh
MX Hostnames
- kis.kraussreinhardt.de
MX Priorities
- kis.kraussreinhardt.de: 10
A / AAAA Records
- 78.46.99.247 ↩ kis.kraussreinhardt.de
- 2a01:4f8:120:9401::2 ↩ kis.kraussreinhardt.de
Mail Server IPs
- 78.46.99.247 ↩ kis.kraussreinhardt.de
- 2a01:4f8:120:9401::2 ↩ kis.kraussreinhardt.de
SOA Record
Raw SOA
kis.kraussreinhardt.de admin.kraussreinhardt.de 2026031301 7200 540 604800 3600
Primary NS (mname)
kis.kraussreinhardt.de
Admin Email (rname)
admin@kraussreinhardt.de
Serial
2026031301
Refresh
7200s
Retry
540s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
hydrogen.ns.hetzner.com
kis.kraussreinhardt.de
helium.ns.hetzner.de
oxygen.ns.hetzner.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=y223VSq2pQawC-Ml9OtAYo8Xe5JBVI2YrUEnz4Vta_0
- SPFv=spf1 mx a ~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 optik-lorenz-zwickau.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits