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Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-49.akam.net: "41824.9"; a1-49.akam.net: "41824.10"; a11-64.akam.net: "41824.10"; a11-64.akam.net: "41824.4"; a12-65.akam.net: "48878.32"; a18-66.akam.net: "48878.26"; a18-66.akam.net: "48878.30"; a28-67.akam.net: "48878.26"; a28-67.akam.net: "48878.30"; a3-64.akam.net: "41824.4"; a3-64.akam.net: "41824.11". 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.

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

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: selector1 (1024 bits), selector2 (1024 bits). Rotate to a 2048-bit key.

MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 2a01:111:f403:cc09::1 (tvb-com.mail.protection.outlook.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.