Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cmg-jena.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 00:09:38 UTC · ↺ Refresh
MX Hostnames
- mx01.sabiv.de
MX Priorities
- mx01.sabiv.de: 10
A / AAAA Records
- 217.160.91.192 ↩ s22935507.onlinehome-server.info
Mail Server IPs
- 94.135.167.110 ↩ mx01.sabiv.de
- 213.182.154.100 ↩ mx01.sabiv.de
SOA Record
Raw SOA
nsa3.schlundtech.de info.amadeusgruppe.de 2020111600 43200 7200 1209600 600
Primary NS (mname)
nsa3.schlundtech.de
Admin Email (rname)
info@amadeusgruppe.de
Serial
2020111600
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
nsb3.schlundtech.de
nsa3.schlundtech.de
nsd3.schlundtech.de
nsc3.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ 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 -all
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