[Dovecot] Unknown dict module: db with expire plugin

[Nicolas Letellier]

Hello.

I use dovecot 1.1.8 in a FreeBSD 6.3
Today, I want to active expire plugin.

But it does not work. I made instructions described in http://wiki.dovecot.org/Plugins/Expire for a bdb database.

See my dovecot -n:
# 1.1.8: /usr/local/etc/dovecot.conf
# OS: FreeBSD 6.3-RELEASE-p4 i386  ufs
syslog_facility: local6
ssl_cert_file: /etc/ssl/mail/***********.cert
ssl_key_file: /etc/ssl/mail/********************.key
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
login_user: dovecot-auth
login_greeting: **************************
login_processes_count: 2
verbose_proctitle: yes
first_valid_uid: 143
last_valid_uid: 143
first_valid_gid: 143
last_valid_gid: 143
mail_access_groups: mail
mail_location: maildir:/var/mail/vmail/%u/
mail_plugins: quota imap_quota mail_log expire
imap_client_workarounds: delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep
auth default:
  mechanisms: plain login
  passdb:
    driver: sql
    args: /usr/local/etc/dovecot/dovecot-sql.conf
  userdb:
    driver: sql
    args: /usr/local/etc/dovecot/dovecot-sql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 432
      user: dovecot
      group: mail
plugin:
  quota: maildir
  quota_rule: *:storage=1000M
  quota_rule2: Trash:storage=50M
  quota_warning: storage=80%% /usr/home/scripts/mail_quota-warning.sh 80
  quota_warning2: storage=90%% /usr/home/scripts/mail_quota-warning.sh 90
  quota_warning3: storage=95%% /usr/home/scripts/mail_quota-warning.sh 95
  sieve: /var/mail/vmail/%u/sieve
  expire: Trash 7 Trash/* 7 Junk 2
  expire_dict: proxy::expire
dict:
  expire: db:/var/lib/dovecot/expire.db


The /var/lib/dovecot/expire.db file is not automatically created. So I created it, with root rights. After, the file is always to 0 bytes.

When I want to dovecot --exec-mail ext /usr/local/libexec/dovecot/expire-tool --test
I have this: Error: read(/var/run/dovecot/dict-server) failed: Remote disconnected

And in my logs:
Jan 28 09:24:36 ******** dovecot: dict: Unknown dict module: db
Jan 28 09:24:36 ******** dovecot: dict: Failed to initialize dictionary 'expire'


I do not understand the problem. I made instructions on the wiki page. Is anybody could help me to resolve this?

Thanks.

Regards,

(ps : another question : what's the advantage of expire plugin with a manual cron job?)

-- 
 -Nicolas.