Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cs-concept.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 13:28:58 UTC · ↺ Refresh
MX Hostnames
- mailx3-in-b.csaonline.de
- mailx3-in-a.csaonline.de
MX Priorities
- mailx3-in-a.csaonline.de: 10
- mailx3-in-b.csaonline.de: 20
A / AAAA Records
- 81.27.162.76 ↩ webpanel.csaonline.de
Mail Server IPs
- 81.27.162.79 ↩ mailx3-in-a.csaonline.de
- 213.166.247.79 ↩ mailx3-in-b.csaonline.de
SOA Record
Raw SOA
dns1.csaonline.de rz.csaonline.de 2024050101 10800 3600 604800 60
Primary NS (mname)
dns1.csaonline.de
Admin Email (rname)
rz@csaonline.de
Serial
2024050101
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
60s
Nameservers (NS)
dns1.csaonline.de
dns2.csaonline.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:81.27.162.64/26 ip4:81.27.162.8/29 ip4:213.166.247.0/25 mx -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
3 records- MS=33D9DDC3CAD48545FFF7831780715D46DE43EBE8
- SPFv=spf1 ip4:81.27.162.64/26 ip4:81.27.162.8/29 ip4:213.166.247.0/25 mx -all
- MS=ms29299413
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