https://blogs.damiendye.uk/en/tags/stalwart/ Recent content in Stalwart on Damien Dye's Blog Hugo en-GB Thu, 22 Oct 2026 18:40:00 +0100 https://blogs.damiendye.uk/en/email/stalwart-dane-and-the-rest-built-in/ Thu, 22 Oct 2026 18:40:00 +0100 https://blogs.damiendye.uk/en/email/stalwart-dane-and-the-rest-built-in/ Stalwart puts SMTP, IMAP, SPF, DKIM, DMARC, DANE, MTA-STS and a spam filter in one binary, which is the appeal and the catch. The same house rules as the Postfix build, enforced here, with every reply captured in the lab, the permissive defaults it ships with, the four places a rule has to go, and the behaviours that need working around.