Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kuhna.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 12:31:49 UTC · ↺ Refresh
MX Hostnames
- kuhna-de.mail.protection.outlook.com
MX Priorities
- kuhna-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.155 ↩ 217-160-0-155.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2b6 ↩ 2001-08d8-100f-f000-0000-0000-0000-02b6.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1040.ui-dns.biz hostmaster.kundenserver.de 2017060602 28800 7200 604800 300
Primary NS (mname)
ns1040.ui-dns.biz
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017060602
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1040.ui-dns.biz
ns1040.ui-dns.de
ns1040.ui-dns.org
ns1040.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- anthropic-domain-verification-5yk3ny=JGnYEPXH0cR4zI6wEpQdofviP
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 kuhna.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits