During the update of DA, in the update.sh script, the following will be called: echo "action=syscheck" >> /usr/local/directadmin/data/task.queue What this will do (so far) is check for any directory in /var/www/html that starts with roundcubemail and contains a 0.1 in it somewhere. If found, DA will notify all admins via the message systems about the folders, and chmod these folders to 0 to prevent it from being accessed by anyone (except root of course). If you're still using roundcube 0.1, it's in your best interest not to be using it, so consider this a very large hint. Update to 0.2: http://www.directadmin.com/forum/showthread.php?t=29240 If you insist upon using 0.1 (against our recommendations) then you'd simply need to type: chmod 755 /var/www/html/roundcubemail* and you'll be running again. This is *not* recommended for roundcube 0.1. Of course, the next update of DA would chmod it to 0 again.