Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bierhaus-steuerberater.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 11:03:30 UTC · ↺ Refresh
MX Hostnames
- line1b.virus-defence.de
- line1a.virus-defence.de
MX Priorities
- line1a.virus-defence.de: 10
- line1b.virus-defence.de: 20
A / AAAA Records
- 213.61.91.99 (no PTR)
Mail Server IPs
- 80.82.218.16 ↩ line1a.virus-defence.de
- 87.190.16.131 ↩ line1b.virus-defence.de
SOA Record
Raw SOA
ns.k1net.de hostmaster.k1net.de 2025081302 3600 900 1209600 3600
Primary NS (mname)
ns.k1net.de
Admin Email (rname)
hostmaster@k1net.de
Serial
2025081302
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns.k1net.info
ns.k1net.org
ns.k1net.eu
ns.k1net.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spfext.espectrum-hosting.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms34986529
- SPFv=spf1 include:spf.protection.outlook.com include:spfext.espectrum-hosting.de -all
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