1. Regular hotfixes. Our servers have been on the latest 9.2.1 for months now and we still don't have a working migration manager. (Using the migration manager resets all ssl certificates on the server to the server default making it unusable). 2. Webmail plugin architecture: Now that the webmail in 9 is plugin based .. Have an easy method of registering new modules (members have already been hacking roundcube together and because they can't register new webmail .. they just replace atmail module instead ) 3. Greylisting control panel should have a web interface (I know there is a CLI interface) .. but with the web interface it will allow clients to control their own greylisting settings).