cocktail-scandinave.fr

Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.cp.hegerys.com: "9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.10"; ns2.cp.hegerys.com: "9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.10". Hide or replace the version string.

SOA · expire 4032m is shorter than 7d; secondaries stop answering too soon when the primary is down; negative caching TTL (minimum) 10s is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 24m, retry 12m, expire 4032m, negative TTL 10s.

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.

Records · These records have a TTL below 5m, causing extra queries and slower lookups: NS (10s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 10s; resolvers may use either.

DMARC · DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.

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

MX · The following MX hosts could not be resolved to IPv6 addresses: mx-mibc-fr-01.mailinblack.com

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

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

MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 40.89.148.181 (mx-mibc-fr-01.mailinblack.com). Ask your hosting provider to set one.

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.