Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
kostenzer.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-04 18:26:49 UTC · ↺ Refresh
MX Hostnames
- mail.kostenzer.de
MX Priorities
- mail.kostenzer.de: 0
A / AAAA Records
- 45.86.125.89 ↩ ethone.kostenzer.de
- 2a0c:8900:1::4d9f:13fb (no PTR)
Mail Server IPs
- 45.86.125.89 ↩ ethone.kostenzer.de
- 2a0c:8900:1::4d9f:13fb (no PTR)
SOA Record
Raw SOA
angus.ns.servercow.de hostmaster.servercow.de 2026090301 14400 3600 1209600 3600
Primary NS (mname)
angus.ns.servercow.de
Admin Email (rname)
hostmaster@servercow.de
Serial
2026090301
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dexter.ns.servercow.net
galloway.ns.servercow.com
angus.ns.servercow.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a:mail.kostenzer.de ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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- SPFv=spf1 a:mail.kostenzer.de ?all
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