Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality youd expect from an email client, including MIME support, address book, folder manipulation, message searching and spell checking. It is easy to install/configure and runs on a standard LAMP server. The skins use the latest web standards to render a functional and customizable UI. Roundcube includes other sophisticated open-source libraries such as PEAR, an IMAP library derived from IlohaMail the TinyMCE rich text editor, Google spell library for spell checking or the WasHTML sanitizer by Frederic Motte.