About the Roundcube webmail project
This project is a free and open source webmail solution with a desktop-like user interface which is easy to install/configure and that runs on a standard LAMPP server. The skins use the latest web standards such as XHTML and CSS 2. Roundcube includes other sophisticated open-source libraries such as PEAR, an IMAP library derived from IlohaMail the TinyMCE rich text editor, Googiespell library for spell checking or the WasHTML sanitizer by Frederic Motte.
Released features
- Available in over 70 languages
- Drag-&-drop message management
- Full support for MIME and HTML messages
- Sophisticated privacy protection
- Compose messages with attachments
- Multiple sender identities
- Full featured address book with groups and LDAP connectors
- Find-as-you-type address book integration
- Richtext/HTML message composing
- Forwarding messages with attachments
- Searching messages and contacts
- Threaded message listing
- IDNA support
- Spell checking
- IMAP folder management
- Shared/global IMAP folders
- Support for external SMTP server
- Support for access control lists (ACL)
- Built-in caching for fast mailbox access
- Unlimited users and messages
- Template system for custom skins
- Plug-in API for flexible exensions
Planned features
- Support for PGP and S/MIME encryption
- Online calendar module
- Saved mail and address book searches
- Keyboard shortcuts
- Attachment previews
- Import/export functions
- Admin interface
See the development roadmap for more.
Server Requirements
- Apache, Lighttpd, Cherokee or Hiawatha web server
- PHP Version 5.2.1 or greater
- MySQL, PostgreSQL, SQLite or MSSQL database
- An IMAP server which supports IMAP4 rev1
- An SMTP server (recommended) or PHP configured for mail delivery
More detailed list of requirements
License
Roundcube Webmail is released under the GNU General Public License
version 3 or any later version with exceptions for skins and plugins.
Everyone is welcome to download and use it, deploy it and to re-distribute it.
The code is provided «as-is» and in no event shall the copyright
owner or contributors be liable for any direct, indirect, incidental,
special, exemplary, or consequential damages.
More details about licensing and the exceptions for skins and plug-ins

Roundcube provides a streamlined user interface. The default skin includes icons designed by Stephen Horlander and Kevin Gerich for Mozilla.org.
