biologie.uni-osnabrueck.de

Valid Email Server
Domain Lookup › biologie.uni-osnabrueck.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
biologie.uni-osnabrueck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 07:55:04 UTC · ↺ Refresh

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MX Hostnames

  • b2411.mx.srv.dfn.de
  • c2411.mx.srv.dfn.de
  • a2411.mx.srv.dfn.de

MX Priorities

  • a2411.mx.srv.dfn.de: 60
  • b2411.mx.srv.dfn.de: 60
  • c2411.mx.srv.dfn.de: 60

A / AAAA Records

  • 131.173.17.203 ↩ t3prod4g.rz.uni-osnabrueck.de
  • 2001:638:508:100::83ad:11cb ↩ t3prod4g.rz.uni-osnabrueck.de

Mail Server IPs

  • 194.95.232.204 ↩ a2411.mx.srv.dfn.de
  • 2001:638:d:c301:acdc:1979:2:b2 ↩ a2411.mx.srv.dfn.de
  • 194.95.234.204 ↩ b2411.mx.srv.dfn.de
  • 2001:638:d:c302:acdc:1979:2:b2 ↩ b2411.mx.srv.dfn.de
  • 194.95.238.204 ↩ c2411.mx.srv.dfn.de
  • 2001:638:d:c303:acdc:1979:2:b2 ↩ c2411.mx.srv.dfn.de

SOA Record

Raw SOA dns-1.serv.uni-osnabrueck.de dnsadmin.uni-osnabrueck.de 767896875 3602 1802 1209600 1202
Primary NS (mname)
dns-1.serv.uni-osnabrueck.de
Admin Email (rname)
dnsadmin@uni-osnabrueck.de
Serial
767896875
Refresh
3602s
Retry
1802s
Expire
1209600s
Minimum TTL
1202s

Nameservers (NS)

dns-1.serv.uni-osnabrueck.de
dns-2.serv.uni-osnabrueck.de
dns-3.serv.uni-osnabrueck.de

SPF Record

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

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No 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 redirect=uni-osnabrueck.de
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