Posting to personal mail folders

[Henning]

Hi,

I'm playing around with cyrus-imap and posting to folders. With shared
folders, created via kolab-webadmin it works well. However, to enable
users to post messages in their own personal mail folders I have to set
"anyone p" permissions with cyradmin.

Then I can use username+foldername at domain.com to post in this folder.

Is this neccesary? Wouldn't this enable all users to post in this
mailbox? And how do I automatically set a "nice address" for all
personal folders?

regards,
Henning