Removing dovecot-managesieved ----------------------------- If you remove (i.e. with dpkg -r or aptitude remove) this package you will get an error something like this: doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf: service(managesieve-login): executable is empty To avoid it, make sure /etc/dovecot/conf.d/etc/dovecot/conf.d/20-managesieve.conf has been deleted, moved or completely commented out first. Alternatively, purge the package instead of removing it. If you do not do this, dovecot-core will be left in an unconfigured state because the error will cause a trigger to fail. To fix this simply reinstall dovecot-core.