Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kornvitus.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:53:54 UTC · ↺ Refresh
MX Hostnames
- mail.kornvitus.de
MX Priorities
- mail.kornvitus.de: 0
A / AAAA Records
- 136.243.162.136 ↩ dedi4839.your-server.de
Mail Server IPs
- 136.243.162.136 ↩ dedi4839.your-server.de
SOA Record
Raw SOA
ns1.namesecure.de hostmaster.namesecure.de 2020100500 14400 3600 604800 28800
Primary NS (mname)
ns1.namesecure.de
Admin Email (rname)
hostmaster@namesecure.de
Serial
2020100500
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns2.namesecure.de
ns1.namesecure.de
SPF Record
✓ Strict (-all)
v=spf1 a mx a:dedi4839.your-server.de ip4:136.243.162.136 mx:dedi4839.your-server.de include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict 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
5 records- google-site-verification=iuhR5mPP1MasNvyv6p9EsEHDI_C-PMAyxLtZq4jzB2s
- w2jhlgzsl6jg1k29ldqk8mr1brqxc8sg
- SPFv=spf1 a mx a:dedi4839.your-server.de ip4:136.243.162.136 mx:dedi4839.your-server.de include:spf.protection.outlook.com -all
- MS=ms45419335
- hes=4aed4a3108b9ff7787fe1ce2f8afde98
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 kornvitus.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits