SurfaceMap › m › messe-berlin.de

messe-berlin.de

Checked 2026-10-21 23:22 UTC · first added 2026-10-21
✗Problems found Score 63 of 100

Domain & DNS

warn

22 passed 3 warn 0 failed

Areas

iRegistration ✓Delegation iNameservers !SOA !DNSSEC !Records

Problems

  • !
    Unusual SOA timers
    SOA · retry 2h46m40s should be shorter than refresh 2h46m40s. Current values: refresh 2h46m40s, retry 2h46m40s, expire 28d, negative TTL 5m.
    #23
  • !
    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
  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (1s), AAAA (6s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 5m; resolvers may use either.
    #32

Recent checks

!

Full report

Domain & DNS report for messe-berlin.de ›

Mail

fail

22 passed 6 warn 1 failed

Areas

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

Problems

  • ✗
    12 DNS lookups, over the limit of 10
    SPF · SPF record needs 12 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.
    #2
  • !
    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
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits), selector2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Report address not authorized
    DMARC · These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:monitoring@messe-berlin.net (needs messe-berlin.de._report._dmarc.messe-berlin.net). Ask the report provider to publish the record, or check the address.
    #29
  • !
    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 messe-berlin.de ›