wiwi.uni-bielefeld.de

Email infrastructure report · Last checked 28 Jul 2026, 19:12 UTC

Summary

wiwi.uni-bielefeld.de uses Self-hosted / Custom for email and has SPF, DKIM, and DMARC configured. It is not catch-all.

Mail provider

ProviderSelf-hosted / Custom self-hosted

Primary MXa2631.mx.srv.dfn.de

MX records

Priority	Hostname	IPs
50	a2631.mx.srv.dfn.de	194.95.233.33
50	c2631.mx.srv.dfn.de	194.95.239.33
50	b2631.mx.srv.dfn.de	194.95.235.33

Authentication

SPF✓ Present

DKIM✓ Found (selectors: s1)

DMARC✓ Present p=none

Raw SPF record

v=spf1 redirect=uni-bielefeld.de

Raw DMARC record

v=DMARC1; p=none

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response5946ms

SMTP banner220-a2631.mx.srv.dfn.de ESMTP Postfix 220 a2631.mx.srv.dfn.de ESMTP Postfix

What this means

This domain has strong email authentication. Messages claiming to come from @wiwi.uni-bielefeld.de can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

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