cerobear.de

Valid Email Server
Domain Lookup › cerobear.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cerobear.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 21:22:17 UTC · ↺ Refresh

MX Hostnames

  • mail.cerobear.de

MX Priorities

  • mail.cerobear.de: 10

A / AAAA Records

  • 5.145.140.161 (no PTR)

Mail Server IPs

  • 93.159.249.36 ↩ mail.cerobear.de

SOA Record

Raw SOA ns2.knipp.de dnsmaster.irondns.net 2024020593 10800 3000 2419200 900
Primary NS (mname)
ns2.knipp.de
Admin Email (rname)
dnsmaster@irondns.net
Serial
2024020593
Refresh
10800s
Retry
3000s
Expire
2419200s
Minimum TTL
900s

Nameservers (NS)

ns3.knipp.de
ns2.knipp.de
ns17.knipp.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:93.159.249.36 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected]

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

2 records
  • SPFv=spf1 ip4:93.159.249.36 -all
  • google-site-verification=CDX6vuDzo_pmkdej2fRLLa5nfq5Eq1ty-rFH9W-ZSSc
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