Opensmtpd

A data-rich, strongly critical dossier arguing FreeBSD's default security posture is poorly designed and slow to improve, citing long backports, root-running update/build workflows, insecure defaults across OpenSSH, packaging, and SSL, with concrete mitigation recommendations (LibreSSL, non-root builds, swap encryption, tightened sysctl/loader.conf) and governance/transparency concerns.

A data-rich retrospective on 18 years of greytrapping showing explosive growth in spamtraps (driven by synthetic data in 2024–25), IPv4-only limitations in spam fighting, and the regulatory/standards context around mail handling (RFC 7505), with implications for email security investments and blocklisting practices.