[horde] Special mailboxes - MBOX_SPAM

[sascha at schmidt.ps]

>> Now the master question: is there an easy way to update the old  
>> name for all old users to the new spam-foldername?
>
> You need to set it in the preferences.

Do you mean the preferences config file? After updating this file  
every configuration only applies to NEW users. Existing ones hold  
their own old configuration.

Or which preferences do you mean?