// Archive
Category: Mail
Mail server setup, administration, and hardening: Postfix, Dovecot, Rspamd, and related tools.
Dovecot, Post-Quantum TLS and Sieve: The BOFH Guide to a Hardened IMAP Server
A cryptographically relevant quantum computer doesn’t exist yet, and a nation-state is almost certainly recording your IMAP session anyway. That’s not paranoia,…
ViMbAdmin: The Postfix + Dovecot Mailbox Admin Panel (Modernised for PHP 8.5)
Your mailbox table deserves better than raw SQL at 02:00. ViMbAdmin — modernised for PHP 8.5 — manages Postfix + Dovecot virtual domains, mailboxes and aliases via web UI or JSON-RPC API, with TOTP, brute-force protection and a hardened Docker image.
Postfix 3.11: Post-Quantum TLS, TLSRPT, Milters and the Modern MTA Stack
In May 1998, Wietse Venema released the first public alpha of a mailer he’d been writing inside IBM Research and originally called…
Rspamd Explained: How Modern Spam Filtering Actually Works (Bayes, Neural Nets, RBLs and All the Cool Tricks)
Rspamd is the modern spam filter that runs Bayesian classifiers, neural networks, greylisting, DNS blacklists, Pyzor, Razor, OLEFY and DCC — all at once. Here is what rspamd does, how spam evolved, and why it crushes the inbox war.
Postfix + Dovecot Mail Server Setup on Debian 12 and 13 (2026 Guide)
A complete Postfix + Dovecot + Rspamd mail server on Debian 12 and 13 — with TLS, DKIM, SPF, DMARC, spam filtering, virtual mailboxes, security hardening, and a 10/10 score on mail-tester.com. No shortcuts.