truenas.com

Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: ns3.ixsystems.com. ns1.ixsystems.com, ns2.ixsystems.com, ns3.ixsystems.com report NS ns1.ixsystems.com ns2.ixsystems.com.

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: ns2.ixsystems.com: "PowerDNS Authoritative Server 4.6.3 (built Jul 19 2022 04:19:01 by root@123amd64-quarterly-job-11)"; ns3.ixsystems.com: "PowerDNS Authoritative Server 4.7.3". Hide or replace the version string.

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.

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.

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.