[Evolution] Empty ttrash is working only on "this computer" folder

[Ambrogio <fn050202 flashnet it>]

Hi,

I'm another time to ask how to enable empty trash also for other kind of
folder, different from "this computer"

I see that with an account configured as maildir, deleted or moved
messages are marked as deleted, and in the specific trash a see all
deleted messages.

The only way to purge them is to expunge folder.
Empty trash is not working.

Someone else had same problem?

Bye
 Ambrogio