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auerswald.de

Checked 2026-10-21 21:31 UTC · first added 2026-10-21

✗Problems found Score 69 of 100

Domain & DNS

warn

23 passed 2 warn 0 failed

Areas

iRegistration ✓Delegation iNameservers ✓SOA !DNSSEC !Records

Problems

!

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
!

Very low TTLs

Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m), NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1m; resolvers may use either.

#32

Recent checks

!

Full report

Domain & DNS report for auerswald.de ›

Mail

fail

21 passed 5 warn 1 failed

Areas

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

Problems

✗

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
!

Hosts without IPv6

MX · The following MX hosts could not be resolved to IPv6 addresses: mx01.hornetsecurity.com, mx02.hornetsecurity.com, mx03.hornetsecurity.com, mx04.hornetsecurity.com

#11
!

1024-bit DKIM key

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: default (1024 bits), selector1 (1024 bits), selector2 (1024 bits). Rotate to a 2048-bit key.

#23
!

Key in test mode

DKIM · These keys have t=y, so receivers treat DKIM failures as a test: default. Remove t=y once DKIM works.

#24
!

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 auerswald.de ›