CheckMail

leibniz-hki.de

Email infrastructure report · Last checked

Summary

leibniz-hki.de uses Self-hosted / Custom for email and has SPF and DMARC configured. It is not catch-all.

Mail provider

ProviderSelf-hosted / Custom self-hosted
Primary MXlethe.hki-jena.de

MX records

PriorityHostnameIPs
100lethe.hki-jena.de192.124.248.148
200havel.hki-jena.de192.124.248.149

Authentication

SPF✓ Present ~all
DKIM? Not detected via common selectors
DMARC✓ Present p=none
Raw SPF record
v=spf1 include:ispgateway.de ip4:192.124.248.148 ip4:192.124.248.149 ip4:192.124.248.158 ip4:192.124.248.159 ~all
Raw DMARC record
v=DMARC1; p=none;

Email behavior

Catch-all✗ No
Disposable✗ No
Free provider✗ No
STARTTLS✓ Supported
SMTP response101ms
SMTP banner220 lethe.hki-jena.de Postfix

What this means

This domain is missing DKIM, which weakens its protection against email spoofing. Adding this record would improve deliverability and reduce the risk of impersonation.

Refresh this report

Cached results are kept indefinitely. If you think the data above is out of date, run a fresh check below. Refreshes are rate-limited (1 per domain every 5 minutes).

Want to verify individual addresses at leibniz-hki.de?

CheckMail's API verifies real-time deliverability with SMTP checks, not just DNS lookups. 100 free credits, no credit card required.

Get an API key → 
curl https://api.checkmail.dev/v1/verify \
  -G --data-urlencode "email=test@leibniz-hki.de" \
  -H "Authorization: Bearer cm_live_..."