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heilbronn.de

Checked 2026-10-21 22:42 UTC · first added 2026-10-21
!Passed with warnings Score 88 of 100

Domain & DNS

ok

27 passed 0 warn 0 failed

Areas

iRegistration iDelegation iNameservers ✓SOA ✓DNSSEC ✓Records

Recent checks

✓

Full report

Domain & DNS report for heilbronn.de ›

Mail

warn

24 passed 4 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
  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mail.stadt-heilbronn.de, mail2.stadt-heilbronn.de
    #11
  • !
    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 heilbronn.de ›