used Lazyexpunge

I used Lazyexpunge.

I tried to create .DELETED without any hints and see that the creation was successful.

I want to prevent users from creating .DELETED, what should I do?

My settings

plugin { lazy_expunge = .DELETED/ } #

namespace { prefix = .DELETED/ hidden = yes list = no separator = / location = maildir:/var/vmail/backup/expunged/%d/%n }