06/16/2026

YARA malware scanning in Rspamd: unwrap malicious mail

YARA malware scanning in Rspamd unpacks OLE, VBA, PDFs and nested attachments before detection rules inspect the dangerous bits.

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06/14/2026

DCC, Razor and Pyzor for Rspamd: One Docker Backend

Run DCC, Razor and Pyzor for rspamd from one token-authed Docker backend that never blocks the scanner and never writes your mail to disk. Here is how the shim works and why it looks the way it does.

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06/08/2026

KAM.cf in Rspamd: 3,200 SpamAssassin Rules, Native Lua, No Perl

KAM.cf is 3,200+ SpamAssassin rules. Loading it through Rspamd compat mode drags the whole Perl engine along. Here is the converter that transpiles it to native Rspamd Lua instead.

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05/26/2026

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…

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05/23/2026

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.

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05/12/2026

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.

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