SurfaceMap › u › uni-potsdam.de

uni-potsdam.de

Checked 2026-10-22 00:50 UTC · first added 2026-10-21
✗Problems found Score 75 of 100

Domain & DNS

fail

21 passed 1 warn 1 failed

Areas

iRegistration iDelegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: ns1.uni-potsdam.de (2001:638:807:40::2): read udp [2a01:4f8:1c1c:eebf::1]:59482->[2001:638:807:40::2]:53: i/o timeout.
    #14
  • !
    Not signed
    DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Recent checks

✗

Full report

Domain & DNS report for uni-potsdam.de ›

Mail

warn

28 passed 4 warn 0 failed

Areas

✓SPF !DMARC ✓DKIM !DNSSEC !MX !TLS iBIMI

Problems

  • !
    Policy: quarantine
    DMARC · DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: smtpin.uni-potsdam.de, smtpin2.uni-potsdam.de, mx1.uni-potsdam.de, mx2.uni-potsdam.de
    #11
  • !
    Policy in testing mode
    TLS · With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.
    #33

Recent checks

!

Full report

Mail report for uni-potsdam.de ›