Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
speedbreaker.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 06:39:20 UTC · ↺ Refresh
MX Hostnames
- mail.speedbreaker.de
MX Priorities
- mail.speedbreaker.de: 10
A / AAAA Records
- 193.228.150.178 ↩ lc4.leonex.de
Mail Server IPs
- 193.228.150.178 ↩ lc4.leonex.de
SOA Record
Raw SOA
ns3.gdns.de info.ameus.de 2025102600 28800 7200 604800 300
Primary NS (mname)
ns3.gdns.de
Admin Email (rname)
info@ameus.de
Serial
2025102600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns3.gdns.de
ns4.gdns.de
ns6.gdns.de
ns5.gdns.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.leonex.de -all
📊 DNS lookups: 3/10
✓ 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
1 record- SPFv=spf1 a mx include:spf.leonex.de -all
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