SurfaceMap › m › mumm.ac.be

mumm.ac.be

Checked 2026-10-22 06:51 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

fail

10 passed 1 warn 2 failed

Areas

iRegistration iDelegation ✗Nameservers !DNSSEC

Problems

  • ✗
    Lame delegation
    Nameservers · These nameservers don't answer authoritatively for the zone, so resolvers ignore them: ns1.belnet.be (193.190.198.14): SERVFAIL, authoritative=false; ns1.belnet.be (2001:6a8:3c80::14): SERVFAIL, authoritative=false; ns2.belnet.be (193.190.182.40): SERVFAIL, authoritative=false; ns2.belnet.be (2001:6a8:3c80:c000::40): SERVFAIL, authoritative=false.
    #15
  • ✗
    No DNS over TCP
    Nameservers · DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns1.belnet.be (193.190.198.14): ; ns1.belnet.be (2001:6a8:3c80::14): ; ns2.belnet.be (193.190.182.40): ; ns2.belnet.be (2001:6a8:3c80:c000::40): .
    #19
  • !
    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 mumm.ac.be ›

Mail

error

7 passed 4 warn 3 failed 2 errors

lookups failed for bimi, tls-rpt; results are incomplete

Areas

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

Problems

  • ✗
    No DMARC record
    DMARC · No DMARC record was found for this domain. DMARC is essential for preventing email spoofing. Add a DMARC record with p=reject or at least p=quarantine.
    #5
  • ✗
    No SPF record
    SPF · No SPF record was found for this domain. SPF is important for preventing email spoofing. Add an SPF record to specify which servers are authorized to send email for your domain.
    #6
  • ✗
    No DKIM keys published
    DKIM · _domainkey.mumm.ac.be does not exist (NXDOMAIN), so no DKIM keys are published. DKIM helps prevent email spoofing. Configure DKIM with your email service provider.
    #7
  • !
    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: mail.rbins.be
    #11
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    Not configured
    TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.
    #32

Recent checks

!

Full report

Mail report for mumm.ac.be ›