Prevent delete a Folder

[Giovanni Baroni]

> While this looks like a serious problem in Thunderbird,
> you could try removing the "delete" capability on the folders for the user 
> itself. I do not know if Thunderbird will then give itself the delete rights 
> again, if it does, you should file an even more critical report to their 
> developer.
> 
> Bernhard

Thanks alot. I hadnt any sucess.
I tried several Permission like lrsip

But i always could delete the folder through Thundberbird.
Theoretically this shouldnt be possible trough imap.
Maybe im doing something wrong, or this is an ACL Problem of cyrus.

Giovanni