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heijmans.nl

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

Domain & DNS

error

1 passed 0 warn 1 failed 2 errors

lookups failed for delegation, zone-ns; results are incomplete

Areas

iRegistration iDelegation ✗DNSSEC

Problems

  • ✗
    DS without signed zone
    DNSSEC · The parent publishes a DS record but the zone has no DNSKEY records, so validating resolvers will reject it. Remove the DS record or sign the zone.
    #27

Recent checks

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Mail

error

20 passed 5 warn 0 failed 1 errors

lookups failed for dkim; results are incomplete

Areas

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

Problems

  • !
    2 of 10 DNS lookups, with problems
    SPF · SPF record needs 2 DNS lookups (limit is 10). Problems found: include:_spf.salesforce.com could not be resolved: DNS query for _spf.salesforce.com failed: read udp 46.225.38.91:38208->8.8.8.8:53: i/o timeout.
    #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
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: heijmans-nl.mail.protection.outlook.com
    #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

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