Rspamd Filtering for Fetchmail, Dovecot & Sieve with Learning
August 12, 2025
I have been having some issues with setting up rspamd in combination with Dovecot >2.4. It seemed there was no complete documentation and the configuration options have changed quite a bit in Dovecot 2.4. So I pieced this together myself and provide it as a short tutorial here. Of course, there is lots of possible implementations of this, I use a smarthost setup with Fetchmail. Since no spam filter is perfect out-of-the-box, I also wanted to have learning of spam/ham supported.