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universiteitleiden.nl

Checked 2026-10-21 21:26 UTC · first added 2026-10-21
!Passed with warnings Score 85 of 100

Domain & DNS

ok

26 passed 0 warn 0 failed

Areas

iRegistration iDelegation iNameservers iSOA iDNSSEC iRecords

Recent checks

✓

Full report

Domain & DNS report for universiteitleiden.nl ›

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
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    Signatures expire in 86h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-25T11:48:21Z (in 86h0m0s). Check that re-signing works.
    #21
  • !
    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

!

Full report

Mail report for universiteitleiden.nl ›