[Dovecot] expire plugin doesn't work?

[Anton Chigin]

Hello,
I've configured dovecot to use expire plugin:
heres my dovecot -n:
---------------------
# 2.1.7: /etc/dovecot/dovecot.conf
# OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.1 ext4
auth_mechanisms = plain login
dict {
  expire = mysql:/etc/dovecot/dovecot-dict-expire-sql.conf.ext
}
mail_location = maildir:/home/mail/vhosts/%d/%n
mail_plugins = expire
mail_privileged_group = vmail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    auto = no
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Spam {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
}
passdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  expire = Trash 7
  expire_dict = proxy::expire
  sieve = ~/dovecot.sieve
  sieve_dir = ~/sieve
  sieve_max_actions = 32
  sieve_max_redirects = 4
  sieve_max_script_size = 1M
  sieve_quota_max_scripts = 32
}
protocols = imap pop3 lmtp sieve
service auth-worker {
  user = vmail
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-userdb {
    mode = 0600
    user = vmail
  }
  user = dovecot
}
service imap-login {
  inet_listener imap {
    port = 0
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  service_count = 1
  vsz_limit = 128 M
}
service pop3-login {
  inet_listener pop3 {
    port = 0
  }
  inet_listener pop3s {
    port = 995
    ssl = yes
  }
}
ssl = required
ssl_ca = </etc/ssl/my_certs/sub.class1.server.ca.pem
ssl_cert = </etc/ssl/private/chig.in/mail/mail.chig.in.crt
ssl_key = </etc/ssl/private/chig.in/mail/mail.chig.in.key
userdb {
  args = uid=vmail gid=vmail home=/home/mail/vhosts/%d/%n
  driver = static
}
protocol lmtp {
  mail_plugins = expire sieve
}
protocol sieve {
  mail_max_userip_connections = 10
  managesieve_implementation_string = Cyrus timsieved v2.2.13
  managesieve_logout_format = bytes=%i/%o
  managesieve_max_compile_errors = 5
}
---------------------


What exactly I did....
1) dovecot.conf
dict {
  expire = mysql:/etc/dovecot/dovecot-dict-expire-sql.conf.ext
}


2) /etc/dovecot/dovecot-dict-expire-sql.conf.ext
connect = host=127.0.0.1 dbname=mailserver user=mail password=SOMEPASS


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


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


3)  conf.d/10-mail.conf
mail_plugins = expire


4) conf.d/90-plugin.conf
plugin {
  #setting_name = value
  expire = Trash 7
  expire_dict = proxy::expire
}


5) Created table in mysql server
mysql> show create table expires;
+---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table   | Create Table                                                                                                                                                                                                |
+---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| expires | CREATE TABLE `expires` (
  `username` varchar(75) NOT NULL,
  `mailbox` varchar(255) NOT NULL,
  `expire_stamp` int(11) NOT NULL,
  PRIMARY KEY (`username`,`mailbox`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
+---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)


And nothing works
dovecot debug shows nothing: only one string related to expire plugin
Aug 24 04:21:37 piscola dovecot: lmtp(16927): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_expire_plugin.so


mysql general query log show nothing also...


Can anyone help me please?
Thanks a lot!