This is the last part of the Setting up and configuring a mail server series where will cover how to install and configure Roundcube Webmail. Roundcube is a web-based IMAP email client with a very intuitive and modern user interface written in PHP. To use Roundcube you only need a Web browser. RoundCube includes all the features which you need in an email client such as richtext/HTML message composing, address book, support for MIME/HTML emails, multiple sender identities, spell checking, three column View, drag & drop message management and more.