[Dovecot] Shared Mailboxes (symlink) and kmail: known issues?

[Wilhelm Meier]

Am Dienstag 20 Januar 2009 schrieb Wilhelm Meier:
> Hi,
>
> Am Montag 19 Januar 2009 schrieb Timo Sirainen:
> > On Mon, 2009-01-19 at 18:32 +0100, Wilhelm Meier wrote:
> > > kmail instead seems to have some problems: if I save a mail
> > > into the shared-folder, the other users are seeing this new
> > > mail almost immediately. But if I delete(!) a mail from the
> > > shared-folder, the list of the other kmails remains untouch.
> > > Refreshing does nothing. I have to close kmail and restart.
> > >
> > > Is this related to some sort of wrong config of the shared
> > > mailboxes or is this a (known) dovecot <-> kmail problem?
> >
> > My guess is that kmail assumes it's the only client accessing the
> > mailbox and doesn't bother handling IMAP notifications about
> > expunged messages.
>
> If I delete the mail via kmail, the mail gets the "T" flag, but the
> mail-file remains there and the other kmail shows the mail
> (strange?). If I afterwards open the mailfolder via e.g.
> squirrelmail, the mail-file gets deleted, and it vanishes from the
> kmail list, if I refresh the view in kmail.
>
> The difference is, that squirrelmail does a login/logout every time
> it looks for mails. kmail stays logged in.
>
> Is this a bug in kmail not to expunge the mail-file? If I manually
> remove the mail-file, kmail is fine!

A "strange" workaround comes into mind, since our shared mail-folders 
are usually small in message-numbers: 

setup inotify to delete all "T"-flagged files.

Would this be ok with dovecot? 

Or can I trigger dovecot (sending a signal or so) to do this?

-- 
Wilhelm