jbc.be

SOA · The nameservers serve different versions of the zone: 2026102102 on ns-c.eurodns.eu (192.174.68.110), ns-c.eurodns.eu (2001:67c:1bc::110), ns-d.eurodns.biz (176.97.158.110), ns-d.eurodns.biz (2001:67c:10b8::110); 2026102103 on ns-a.eurodns.com (199.167.66.106), ns-a.eurodns.com (2610:1c8:b002::106), ns-b.eurodns.org (104.37.178.106), ns-b.eurodns.org (2610:1c8:b001::106). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.

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: A (1m33s). Low TTLs are useful just before a planned change.

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.

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: google (1024 bits), s2 (1024 bits). Rotate to a 2048-bit key.

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.