Hi, I am trying to set up Dovecot with sdbox and sis (single instance storage of attachments), however I get the following error when attempting to start dovecot:

Starting Dovecot Imap: doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 89: Unknown setting: dbox_attachment_dir

I'd appreciate help on getting this up and running. This is a virtual (for the time being) server, running Centos, and Dovecot 2.

[root@localhost ~]# dovecot --build-options Build options: ioloop=epoll notify=inotify ipv6 openssl io_block_size=8192 Mail storages: cydir maildir mbox mdbox raw sdbox shared SQL driver plugins: mysql postgresql sqlite Passdb: checkpassword ldap pam passwd passwd-file shadow sql Userdb: checkpassword ldap(plugin) nss passwd prefetch passwd-file sql

[root@localhost ~]# dovecot -n # 2.0.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-238.9.1.el5 x86_64 CentOS release 5.6 (Final) auth_debug = yes auth_debug_passwords = yes auth_verbose = yes disable_plaintext_auth = no mail_location = sdbox:~/dbox mbox_write_locks = fcntl passdb { driver = pam } ssl_cert =