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leidseschouwburg-stadsgehoorzaal.nl

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

Domain & DNS

error

27 passed 0 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation iNameservers ✓SOA ✓DNSSEC iRecords

Recent checks

!

Full report

Domain & DNS report for leidseschouwburg-stadsgehoorzaal.nl ›

Mail

warn

30 passed 4 warn 0 failed

Areas

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

Problems

  • !
    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: k1 (1024 bits), s2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Policy in testing mode
    TLS · With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.
    #33
  • !
    MX hosts missing from policy
    TLS · These MX hosts are not listed in the MTA-STS policy (mx: leidseschouwburgstadsgehoorzaal-nl04b.mail.protection.outlook.com): leidseschouwburgstadsgehoorzaal-nl04b.c-v1.mx.microsoft. This will break delivery once the policy is enforced.
    #34

Recent checks

!

Full report

Mail report for leidseschouwburg-stadsgehoorzaal.nl ›