[Dovecot] Disallow folder delete

[Timo Sirainen]

On May 20, 2008, at 2:07 AM, Kenneth Porter wrote:

> Is there a straightforward way to disallow the deletion of all IMAP  
> mailboxes?
>
> I have a user who's deleted an important IMAP mailbox and I'm now  
> recovering a recent copy from the backup. But I'd rather just  
> blanket disallow all folder deletions.
>
> The user is using Thunderbird and this has happened more than once  
> so I suspect Tbird is willing to let a folder get deleted too  
> easily. Perhaps there was a delay in the confirmation dialog and the  
> user clicked ahead and confirmed something he shouldn't have.
>
> I'm looking at <http://wiki.dovecot.org/ACL> and it looks like I  
> should be able to use a group override to disallow "x" (mailbox  
> delete) but the page says that groups aren't implemented, so I don't  
> know how one says that nobody can do this for any mailbox.

Using global ACLs gets you closer at least. You can define:

acl = vfile:/etc/dovecot/acls

Then having /etc/dovecot/acls/.DEFAULT probably does something.. But I  
don't remember if it applies to all mailboxes or just those on the  
root level or what. I should look into this some day and make all of  
them possible. :)

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