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noordwijk.nl

Checked 2026-10-22 14:50 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

30 passed 0 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration ✓Delegation ✓Nameservers ✓SOA iDNSSEC ✓Records

Recent checks

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Mail

warn

26 passed 6 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
  • !
    Applies to 5% of mail
    DMARC · DMARC policy only applies to 5% of failing mail (pct=5). Raise pct to 100 once you are confident in your setup.
    #18
  • !
    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
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), selector1 (1024 bits), selector2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    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
  • !
    Not configured
    TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35

Recent checks

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