mailboxes.db vs IMAP client irregularities

[Simon Matter]

> On 05/19/2012 01:51 PM, Stephen Ingram wrote:
>> I'm running 2.4.13 from the invoca rpms on CentOS 5.8. I recently had
>> an issue with a folder in a mailbox that would not show any
>> subfolders. I created a new folder 'folder2' and moved all of the
>> subfolders to it and then performed a reconstruct on the new set of
>> folders and everything worked. Now I deleted the old folder 'folder'
>> from the file system and then (after it wouldn't go away from the
>> cyradm listing) used cyr_dbtool to manually remove it (and the
>> subfolders) from the mailboxes.db file. The old folders and subfolders
>> are now gone, however, I can't (using the IMAP client) rename
>> 'folder2' back to 'folder' as when I do, the subfolders are not
>> visible.
>>
>> I've dumped the mailboxes.db file to a flat file to look and see if
>> there is anything in there that wasn't visible in cyradm or using
>> cyr_dbtool show. Everything is as expected except there are some
>> DELETED.user.xxx.folder entries at the top. Are you not allowed the
>> create folders with the same name you've just deleted? Where are these
>> DELETED folders actually stored and how long does it take them to go
>> away? (I'm not using delayed expunge.)
>
> Sounds like you are using delayed delete. Mine show up in
> /imap/mail/C/DELETED/  . How long they stay around depends on when you
> run cyr_expire and what parameters you give it.
>
>
> Man page entries:
>
> deletedprefix: DELETED
>              If  "delete_mode"  set  to  be  "delayed",  the  prefix for
> the deleted mailboxes hierarchy.  The hierarchy delimiter will be
> automatically appended.
>
> delete_mode: immediate
>              The manner in which mailboxes are deleted. "immediate" mode
> is the default  behavior  in  which  mailboxes  are  removed
> immediately.   In "delayed" mode, mailboxes are renamed to a special
> hiearchy defined by the "deletedprefix" option to be removed later by
> cyr_expire.

Just to clear this up, if he's using our invoca rpms then his man page reads:

       delete_mode: delayed
            The manner in which mailboxes are deleted. "immediate" mode is
the
            the mode in which mailboxes are removed immediately.  In
"delayed"
            mode, mailboxes are renamed to a special hiearchy defined  by 
the
            "deletedprefix" option to be removed later by cyr_expire.

       Note:  This Invoca RPM build uses delayed by default instead of
immedi-
       ate for delete_mode.

       Allowed values: immediate, delayed

Regards,
Simon