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We have a solution using Dovecot as a secondary mail archive. All mailboxes are populated/groomed by master account and the actual users have only read access. This is achieved by a simple ACL approach. dovecot.conf has protocol imap { mail_plugins = acl quota imap_quota zlib } plugin { acl = vfile:/etc/dovecot/acls:cache_secs=300 } /etc/dovecot/acls/.DEFAULT file is trivial: user=master

After several trouble free months and without any obvious reason our server just stopped working. I cannot even re-start it: [root at dsmail /]# service dovecot start Starting Dovecot Imap: Can't open log file /var/log/dovecot.log: Permission denied If I create those manually (touch /var/log/dovecot.log, .../dovecot_info.log, .. dovecot_debug.log) service starts, but reports an error in

I'd like to allow a user to move messages between his folders on Dovecot IMAP account, but prevent move/copy from different accounts (Exchange in particular). Outlook uses "xx UID COPY 1 folder" and then "xx UID STORE 1 +FLAGS (\Deleted \Seen)" for internal moves and "xx APPEND folder" for external ones. I tried to achieve this with ACL, but i (insert) seems to

Is it possible to authenticate users against multiple independent AD domains? In my dovecot-ldap.conf I entered two hosts: hosts = host1 host 2 auth_bind_userdn = %d\%n ldap_version = 3 base = cn=users,dc=%d,dc=net auth_bind = yes but OpenLDAP seems to stop authentication as soon as the first host succeeds or fails. I also tried to configure trust between the two, but it didn't work either.

I have a large existing read-only collection of mails packaged in individual zip files as <rfc822 file>+<some additional info>. Is it possible (and how difficult) to create a proprietary plugin (like gzip) which will open a zip file, extract mail and pass it back to Dovecot? Where do I start? If plugin is not the right approach, what is? Another question is how will this affect Dovecot