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hfm-detmold.de

Checked 2026-10-21 22:50 UTC · first added 2026-10-21

✗Problems found Score 62 of 100

Domain & DNS

warn

20 passed 2 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers !SOA !DNSSEC iRecords

Problems

!

Unusual SOA timers

SOA · retry 2h should be shorter than refresh 2h. Current values: refresh 2h, retry 2h, expire 14d, negative TTL 3h.

#23
!

Not signed

DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

#27

Recent checks

!

Full report

Domain & DNS report for hfm-detmold.de ›

Mail

fail

23 passed 4 warn 2 failed

Areas

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

Problems

✗

19 DNS lookups, over the limit of 10

SPF · SPF record needs 19 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.

#2
✗

Policy: none (monitoring only)

DMARC · DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.

#4
!

Not enabled

DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

#8
!

1024-bit DKIM key

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (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

✗

Full report

Mail report for hfm-detmold.de ›