Automation with Sieve scripts
Many email tasks can be automated and DBMail uses the industry standard Sieve to filter and process emails.
Sieve is a data-driven programming language, it specifies conditions to match and actions to take. Actions include to place emails in folders, reject or discard emails, and forward an email to another user.
The Sieve daemon is dbmail-sieved, it is configured in dbmail.conf and runs on a default port of 4090 though this can be changed:
[SIEVE]
port = 4090
Many clients can manage Sieve scripts including Roundcube and KMail.