On 2010-08-25 11:59:06 +0200, Chris Moules wrote:
System info: # 1.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-686-bigmem i686 Debian squeeze/sid .. mail_plugins: readonly ..
I have a requirement to have read-only to a mailbox. I have been researching through the wiki, the mailing list archives and good old Google. There was a number of similar questions with no real definitive answer.
Option 1: ACL This can work, but not if the mailbox(s) can change without you knowing how. I.E. a online read-only archive of someone else's mailbox. There is no wild-card or recursive ACL options. Rsync style backups don't allow for easy creation of custom ACL files per mailbox.
acls are stored in dovecot-acls files either inside the mailbox or in /etc/dovecot. so you can preserve them easily with rsync style backup.
- Dovecot needs write access to CONTROL and INDEX files. This lead me to using the "CONTROL" and "INDEX" options on the mail_locaiton. Setting these to the original 'rw' mount and the rest to my 'ro' bind mount. Again, messy but do-able.
Just for the record: you can configure CONTROL and INDEX seperately. see below.
my solution for a similar problem:
[[[ namespace public { separator = /
# Mailboxes are visible under "shared/user@domain/" # %%n, %%d and %%u are expanded to the destination user. prefix = archive/
# Mail location for other users' mailboxes. Note that %variables and ~/ # expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the # destination user's data. location = maildir:/srv/mail/archive:INDEX=/srv/mail/%u/shared/%%u:CONTROL=/srv/mail/%u/shared
# Use the default namespace for saving subscriptions. subscriptions = yes
# List the shared/ namespace only if there are visible shared mailboxes. list = children } ]]]
only my mail archive user can deliver mails into that namespace (via ACL (p)). all other users only have read permissions, as index/control are per user, each user can have their own flags (like seen).
shouldnt this give you exactly what you want?
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