kernel-error.de

Valid Email Server
Domain Lookup › kernel-error.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kernel-error.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 11:31:02 UTC · ↺ Refresh

MX Hostnames

  • smtp.kernel-error.de

MX Priorities

  • smtp.kernel-error.de: 10

A / AAAA Records

  • 148.251.30.200 ↩ www.kernel-error.de
  • 2a01:4f8:262:4716::443 ↩ www.kernel-error.de

Mail Server IPs

  • 148.251.30.205 ↩ smtp.kernel-error.de
  • 2a01:4f8:262:4716::25 ↩ smtp.kernel-error.de

SOA Record

Raw SOA ns1.kernel-error.de root.kernel-error.de 2026030964 14400 3600 1209600 86400
Primary NS (mname)
ns1.kernel-error.de
Admin Email (rname)
root@kernel-error.de
Serial
2026030964
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.kernel-error.de
ns2.kernel-error.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:148.251.30.205 ip6:2a01:4f8:262:4716::25 mx a:smtp.kernel-error.de a:www.kernel-error.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; sp=reject; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✗ None detected

No 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
  • openai-domain-verification=dv-mXvmQqh8zdVTrnpQicbcMurt
  • onion=jjyvff6eh3kp7ydfkamm27cldhsee2cl6wzfa5lfjyrfyribgeaesgqd.onion
  • abuseipdb-verification=nWiJmy4w
  • SPFv=spf1 ip4:148.251.30.205 ip6:2a01:4f8:262:4716::25 mx a:smtp.kernel-error.de a:www.kernel-error.de -all
  • openai-domain-verification=dv-a34glW0DEnFqOIFKAttqhbzC
Full email verification for kernel-error.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits