Currently have a Debian:Apache,mysql,postfix,php,dovecot running virtual clients. For simplicity I use postfixadmin to add virtual domains and clients and currently using squirrelmail to provide webmail access though I do encourage the use of a desktop mail client (outlook, thunderbird, windows livemail, Any rfc based pop3/Imap/SMTP cient that supports our security settings). Latley our clients have been asking about a more friendly webmail client, so I am trying to have both squirrelmail and roundcube on the same server. So far it has worked nicely save for the lack of documantation on some plugins. A nice interface to enable/disable plugins with plugin description would be nice.