[Dovecot] don't follow symlinks when creating mailbox list

Hi,

this issue was discussed here twice in the not so far history (http://www.dovecot.org/list/dovecot/2008-January/028317.html, http://www.dovecot.org/list/dovecot/2008-February/029147.html), but I need to open it again as it makes problems for our users on one side and on the other side we don't want to diverge from the upstream sources in our packages. I agree with Timo that simply disabling the symlink following in creating the mailbox list can give a false sense of security so the question is whether a permanent solution can be developed and how it should look like?

Regards,
	Dan

-- Fedora and Red Hat package maintainer