[Dovecot] sieve plugin

[Андрей]

I try to cinfigure dovecot run sieve scripts on incoming mail.

In my dovecot.conf:

	<...>
	protocol lda {
	# Address to use when sending rejection mails.
		postmaster_address = root at vpcit.ru
	
	# Hostname to use in various parts of sent mails, eg. in Message-Id.
	# Default is the system's real hostname.
		hostname = vpcit.ru
	
	# Support for dynamically loadable plugins. mail_plugins is a space separated
	# list of plugins to load.
	#mail_plugins =
		mail_plugin_dir = /usr/lib/dovecot/modules/lda
	
	# Binary to use for sending mails.
	#sendmail_path = /usr/lib/sendmail
	
	# UNIX socket path to master authentication server to find users.
		auth_socket_path = /var/run/dovecot/auth-master
	
	# Enabling Sieve plugin for server-side mail filtering
	mail_plugins = cmusieve
	}
	
	<...>
	
	plugin {
		sieve = /var/mail/%d/%1n/%n/.dovecot.sieve
	}

Then i set experiments on my maildir.
In /var/mail/vpcit.ru/d/dukenukem i created script .dovecot.sieve:

	require "fileinto";
	if header :comparator "i;ascii-casemap" :contains "Subject" "sieve check"
	{
		fileinto "Trash";
		stop;
	}

Permissions on /var/mail/vpcit.ru/d/dukenukem are:
	drwx------  5000 mail

So script should put every message that has "sieve check" subject into Trash 
folder.

1) Trash folder isn't created, should i create it manually?
2) Even when i create Trash folder and make 777 permissions to maildir, 
nothing happens (message is dropped into inbox dir)
3) Should i configure my Kontact (KMail) e-mail client some way?
4) What i've done incorrect?

The mail system works fine at the moment for receive and send, trouble only 
with sieve scripting.

Yours faithfully,
Andrey.