SurfaceMap › r › rub.de

rub.de

Checked 2026-10-22 00:01 UTC · first added 2026-10-21
!Passed with warnings Score 82 of 100

Domain & DNS

warn

29 passed 1 warn 0 failed

Areas

iRegistration !Delegation iNameservers ✓SOA ✓DNSSEC ✓Records

Problems

  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: sdns01.de.tmr.net. dns1.ruhr-uni-bochum.de, dns2.ruhr-uni-bochum.de, sdns01.de.tmr.net report NS dns1.ruhr-uni-bochum.de dns2.ruhr-uni-bochum.de.
    #7

Recent checks

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Full report

Domain & DNS report for rub.de ›

Mail

warn

27 passed 5 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
  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    Subdomains unprotected (sp=none)
    DMARC · DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.
    #20
  • !
    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

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Full report

Mail report for rub.de ›