Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stb-groth.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 05:00:40 UTC · ↺ Refresh
MX Hostnames
- mx2.onix.de
- mx1.onix.de
MX Priorities
- mx1.onix.de: 10
- mx2.onix.de: 20
A / AAAA Records
- 87.245.5.246 ↩ vc-stbgroth.onix.de
Mail Server IPs
- 80.228.57.30 ↩ leasedline-static-080-228-057-030.ewe-ip-backbone.de
SOA Record
Raw SOA
ns1.onix.de hostmaster.onix.de 1773849772 10800 1800 604800 300
Primary NS (mname)
ns1.onix.de
Admin Email (rname)
hostmaster@onix.de
Serial
1773849772
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns4.onix.de
ns1.onix.de
ns2.onix.de
ns3.onix.de
SPF Record
✓ Strict (-all)
v=spf1 include:onix.de -all
📊 DNS lookups: 1/10
✓ 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 include:onix.de -all
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