|Developer(s)||The Roundcube Team|
|Stable release||1.1.0 / February 8, 2015|
|License||GNU General Public License v3 + some proprietary components |
Roundcube is a web-based IMAP email client. Roundcube's most prominent feature is the pervasive use of Ajax technology to present a more fluid and responsive user interface than that of traditional webmail clients. After about two years of development, the first stable release of Roundcube was announced in early 2008.
Roundcube is written in PHP and can be employed in conjunction with a LAMP "stack", or any other operating systems that support PHP are supported as well. The web server needs access to the IMAP server hosting the email and to an SMTP server to be able to send mails.
- Connects to any IMAPv4 server
- Available in over 60 languages
- Full support for MIME and HTML messages
- Compose Richtext/HTML messages with attachments
- Multiple sender identities
- Threaded message listing
- IDNA support
- Full-featured address book based on vCard with group support
- LDAP directory integration for address books
- Find-as-you-type address book integration
- Forwarding messages with attachments
- Built-in caching for fast mailbox access
- Searching messages and contacts
- Spell checking
- Support for external SMTP server
- Support for shared/global folders and IMAP ACLs
- IMAP folder management
- Template system for custom themes
Roundcube is used by a number of universities to provide email services to students and staff such as Sanger Institute Tata Institute of Social Sciences, University of Pennsylvania, University of Florida, Harvard University, University of Utah, University of Oregon, Stevens Institute of Technology, Norwegian University of Science and Technology, the University of Sussex, the University of Cambridge and Indian Institute of Technology, Delhi. In a 2009 interview, two of Roundcube's core developers noted that the largest deployment to that date that they were aware of was at the University of Michigan with 70,013 students. Roundcube is also used in the MyKolab service which supports its further development.
Roundcube Webmail IMAP client was incorporated into epesiBIM (epesi Business Information Manager), a web-based, open source CRM-like application.
In 2013, Iran's Ministry of ICT launched the national email service at mail.post.ir which is using Roundcube.
Roundcube Webmail is designed to run on standard web servers such as Apache, Nginx, Lighttpd, Hiawatha or Cherokee in conjunction with a relational database engine. Supported databases are MySQL, PostgreSQL and SQLite. The user interface is rendered in XHTML and CSS and is fully customizable with skins.
With version 0.3 Roundcube introduced a plug-in API which allows non-standard features to be added without the need to modify the source code. A variety of plug-ins are available from the Plugin Repository.
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