Thanks, Janne, but this is not the problem (we have set these XLIST based on this blog, but this affects only the names and usage of special folders). The problem is rather that I cannot see any e-mails in any folders (i.e. special folders but also any other folders) on the server and local e-mails (when manually copying in there) are not copied back from client to server when using Outlook 2013 and Cyrus 2.4.9, it works fine with Outlook 2010 and Cyrus 2.4.9 and Outlook 2013 also worked fine with our previous version of Cyrus 2.2.13. Thanks, Ulrich -----Original Message----- Could it be this? http://blog.chase.net.au/index.php/2013/01/cyrus-imap-and-outlook-2013/ (first hit with googling "cyrus outlook 2013"...) --Janne ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus