SurfaceMap › h › hertz.de

hertz.de

Checked 2026-10-21 22:50 UTC · first added 2026-10-21
!Passed with warnings Score 82 of 100

Domain & DNS

ok

27 passed 0 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA iDNSSEC iRecords

Recent checks

✓

Full report

Domain & DNS report for hertz.de ›

Mail

warn

22 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
  • !
    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: hccppmx01.hertz.com, hccppmx02.hertz.com, htcppmx01.hertz.com, htcppmx02.hertz.com
    #11
  • !
    Signatures expire in 3h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-22T02:00:00Z (in 3h0m0s). Check that re-signing works.
    #21
  • !
    Addresses without reverse DNS
    MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 12.37.224.171 (hccppmx01.hertz.com), 12.37.224.173 (hccppmx02.hertz.com), 12.25.117.71 (htcppmx01.hertz.com), 12.25.117.73 (htcppmx02.hertz.com). Ask your hosting provider to set one.
    #30
  • !
    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 hertz.de ›