Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
unireha-koeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 20:35:41 UTC · ↺ Refresh
MX Hostnames
- medi-v1.rrz.uni-koeln.de
- medi-v2.rrz.uni-koeln.de
MX Priorities
- medi-v1.rrz.uni-koeln.de: 10
- medi-v2.rrz.uni-koeln.de: 10
A / AAAA Records
- 134.95.33.200 (no PTR)
Mail Server IPs
- 134.95.63.204 ↩ medi-v1.rrz.uni-koeln.de
- 2a00:a200::10:0:0:0:204 ↩ medi-v1.rrz.uni-koeln.de
- 134.95.63.205 ↩ medi-v2.rrz.uni-koeln.de
- 2a00:a200::10:0:0:0:205 ↩ medi-v2.rrz.uni-koeln.de
SOA Record
Raw SOA
dns11.netcologne.de hostmaster.netcologne.de 2025041705 10800 3600 3600000 3600
Primary NS (mname)
dns11.netcologne.de
Admin Email (rname)
hostmaster@netcologne.de
Serial
2025041705
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
dns11.netcologne.de
dns14.netcologne.de
dns12.netcologne.de
dns13.netcologne.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a:mail-gw.uk-koeln.de a:smtp.uk-koeln.de include:uni-koeln.de ?all
📊 DNS lookups: 3/10
? Neutral (?all) — no 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:mail-gw.uk-koeln.de a:smtp.uk-koeln.de include:uni-koeln.de ?all
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