Well, although most of the software is really simple to use and administer and I seldom need to browse the documentation, the mail thing is really confusing.
First, In the modules section, there are three mail clients (one roundcube and two mailclients). I can disable one of the mailclients, but not the other, so I have enabled Roundcube and Mailclient.
Second, I can't find where I configure IMAP (or anything else) for Roundcube. Can someone please point me in the right direction?