Regarding the login page: I have a site which is now using roundcube. The actual IMAP server is housing several different domains for mail exchange (more technically I believe mail.domain.com http://mail.domain.com gets routed to one server, where 'domain' could be several domains). The problem this creates is that on the login screen it is necessary for users to specify which domain they have an account on. So, for my username, I would put in 'webadmin@domain.com' (assuming 'domain.com http://domain.com' is my domain of course), instead of just my username. Anybody using this particular roundcube interface is going to also be from 'domain.comhttp://domain.com' and thus, it becomes pointless to have to specify the domain each time.
I suggest an option in the config file for automatically appending a string (in this case, my domain name) to the username that is put into the text box. This would be very helpful and perhaps might even act as a security measurement: only people from certain domains can login.
I haven't had time to look into the code myself and it's been awhile since I've programmed PHP, but I would be willing to implement this and submit a patch file or something. It just might take awhile for me.
Let me know what you think, and if it sounds like a valid feature to add, I'll join the mailing list and do what I can to help with the development of it.
Much thanks,
David L. erdmaN II (the dudeMAN davE _)