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Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns5.twosteps.info: "PowerDNS Authoritative Server 4.8.5 (built Feb 7 2025 09:21:19 by root@localhost)"; ns6.twosteps.info: "PowerDNS Authoritative Server 4.8.5 (built Feb 7 2025 09:21:19 by root@localhost)"; ns7.twosteps.info: "PowerDNS Authoritative Server 4.8.5 (built Feb 7 2025 09:21:19 by root@localhost)". Hide or replace the version string.

DNSSEC · The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.

Records · These records have a TTL below 5m, causing extra queries and slower lookups: MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 15m; resolvers may use either.

DNSSEC · The zone is signed (DNSKEY present) but the parent has no DS record, so the chain of trust is incomplete. Publish the DS record at your registrar.

MX · The following MX hosts could not be resolved to IPv6 addresses: de-smtp-inbound-1.mimecast.com, de-smtp-inbound-2.mimecast.com

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.