DOVECOT.md

Dovecot Installation Guide

Dovecot uses pigeonhole as its sieve implementation.

1. Setup Sieve

Integrate the sieve plugin into the /etc/dovecot/dovecot.conf like this:

plugin {
    sieve_extensions = +vnd.dovecot.execute
    sieve_plugins = sieve_extprograms
    sieve_execute_bin_dir = /etc/dovecot/sieve
}

Then create the folder /etc/dovecot/sieve and the file /etc/dovecot/sieve/antispam.sv with the following contents:

require "vnd.dovecot.execute";

if not execute :pipe /usr/bin/antispam-sieve {
    discard;
    stop;
}

2. Install Antispam-Sieve

On your local machine, build the binaries:

cd /path/to/antispam/toolchain;

go run build.go;

Afterwards, upload the binary located at /path/to/antispam/build/antispam-sieve_linux_amd64 to the server as /usr/bin/antispam-sieve and make sure it's executable.

3. Restart Dovecot Service

sudo systemctl restart dovecot;