skf.com

Delegation · The addresses at the parent (glue) differ from the addresses in the zone: dns01.skf.com (glue 57.67.127.194, zone 57.67.127.194, 2a01:ce89:8000:1001:57:67:127:194); dns02.skf.com (glue 57.73.127.194, zone 57.73.127.194, 2a01:ce9d:0:1001:57:73:127:194). Update the glue at your registrar.

SOA · retry 1h should be shorter than refresh 30m. Current values: refresh 30m, retry 1h, expire 28d, negative TTL 10m.

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 · The following MX hosts could not be resolved to IPv6 addresses: skf-com.mail.protection.outlook.com, skf-com.mail.protection.outlook.com, skf-com.mail.protection.outlook.com

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: selector1 (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.