[Dovecot] plugin expire

Hi everybody,

I'm trying to configure the expire plugin, unsuccessfully. This is my 

configuration, the part related to this plugin. Could somebody give a look to it? I can not figure out why is not working :-S.

Thank you, and regards!

Felix

############ doveconf output dict { expire = mysql:/etc/dovecot/dovecot-dict-expire.conf.ext }

plugin { expire = Trash 15 Junk 15 expire_dict = proxy::expire }

protocol imap { mail_plugins = " zlib expire" }

########### dovecot-dict-expire.conf.ext # CREATE TABLE virtual_expires ( # username varchar(100) not null, # mailbox varchar(255) not null, # expire_stamp integer not null, # primary key (username, mailbox) # );

map { pattern = shared/expire/$user/$mailbox table = virtual_expires value_field = expire_stamp

fields { username = $user mailbox = $mailbox } }