Just added roundcubemail to my dovecot imap server.
It's a nice and clean Dovecot Webfrontend (or imap webfrontend).
Pretty straight forward install.
First i tried to use the apt-get install roundcube function but it ended up in installing like 25 packages i didn't need in the end. I can really recommend going the manual procedure and downloading the rc1.0 version. Very clean UI and just works 🙂