I have my mailserver (exim4) and imap-server (courier-imap) settings
stored in a database for easy maintenance.
This setup works fine, but I must prevent users from renaming shared
folders, otherwise the maildir name gets changed and exim can't deliver
The solution I now have is to use an acl without 'x' on my non-mutable
folder and with 'x' in subsequent folders.
The drawback is that I can't (re)move any mutable folders ... according
to Thunderbird the mailserver responds with that it cannot move folders
to a different account (trash). Moving it to a different folder under
#shared is also not possible.
Is there a workaround for this kind of problem?
An other solution, more user friendly, would be if courier-imap would
call (hook) a script with params when a foldername was changed. The
script could adapt the database setting accordingly.