At some point, my Nextcloud quietly stopped being able to send email. This is currently Nextcloud 27.1.3, running in docker on Debian 11.8, but it might have been broken for some time. When setting up exim on Debian, debconf asks you a few questions and generates a default config. My setup has no other deviations […]

Thanks to ‘foom’ on LWN, comes a neat recipe for automatically installing critical updates on a Debian system with minimal risk: http://lwn.net/Articles/374542/. It’s explained in some detail, but in brief it uses (optionally) a separate sources.list into which you can put only critical sources, and makes dpkg/apt choose the default responses to any questions. Fortunately […]

Update: Newer versions of amavisd-new (certainly 2.6.4-3) have a variable called $logline_maxlen which does exactly what it says on the tin. The rest of this post is therefore of only historic interest. I administer a mail server that uses the popular amavisd-new to perform virus scanning, and spam filtering using SpamAssassin. That server uses Logcheck […]