Am 22.12.2010 um 16:45 schrieb Phil Howard: > protocol lda { > ... > mail_plugins = cmusieve > mail_plugin_dir = /usr/lib/dovecot/modules/lda > … > } Did you apply magic to the Postfix 'master.cf' as well? Just a hunch because it is not mentioned in your post… For Sieve to work the Dovecot LDA needs to be called by Postfix.