math.uni-freiburg.de

Valid Email Server
Domain Lookup › math.uni-freiburg.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
math.uni-freiburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 10:40:38 UTC · ↺ Refresh

MX Hostnames

  • a1421.mx.srv.dfn.de
  • b1421.mx.srv.dfn.de
  • mail.uni-freiburg.de
  • c1421.mx.srv.dfn.de

MX Priorities

  • b1421.mx.srv.dfn.de: 10000
  • c1421.mx.srv.dfn.de: 10000
  • a1421.mx.srv.dfn.de: 10000
  • mail.uni-freiburg.de: 10

A / AAAA Records

  • 132.230.30.6 ↩ fachschaft.mathematik.privat

Mail Server IPs

  • 194.95.234.79 ↩ b1421.mx.srv.dfn.de
  • 2001:638:d:c302:acdc:1979:2:2f ↩ b1421.mx.srv.dfn.de
  • 194.95.238.79 ↩ c1421.mx.srv.dfn.de
  • 2001:638:d:c303:acdc:1979:2:2f ↩ c1421.mx.srv.dfn.de
  • 194.95.232.79 ↩ a1421.mx.srv.dfn.de
  • 2001:638:d:c301:acdc:1979:2:2f ↩ a1421.mx.srv.dfn.de
  • 132.230.2.46 ↩ mail.uni-freiburg.de
  • 2001:7c0:2500:4::25:0 ↩ mail.uni-freiburg.de

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Soft Fail (~all)
v=spf1 redirect=_spf.uni-freiburg.de
📊 DNS lookups: 1/10

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
s1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 redirect=_spf.uni-freiburg.de
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