I'm using dovecot-imapd 1.0.rc15-2etch1 under Debain Etch AMD64 platform,recently, once of our user reported that there have "Unknown Namespace" problem with the new mail.app under leopard.So, is there a workaround at dovecot or I need to upgrade to a latest version of dovecot?
Since this is so old, you should upgrade regardless of if it fixes this particular problem or not......
-- Best regards, Charles