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 OAuth Support Support for shared/global folders and IMAP ACLs IMAP folder management Pretty Good Privacy and Mailvelope support Template system for custom themes Canned response templates Three column (widescreen) mailbox view Notable installations 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 Florida, Harvard University, University of Utah, University of Oregon, Stevens Institute of Technology, Norwegian University of Science and Technology, the Technical University of Dortmund, the University of Cambridge, the Indian Institute of Technology, Delhi, Indian Institute of Technology, Bombay, Institute of Physics, Bhubaneswar, Indian Institute of Science Education and Research Kolkata and Department of Physics, Indian Institute of Technology, Madras, University of Victoria, Bard College at Simon's Rock and Bilkent University. 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 Kolab Now service which supports its further development. CPanel includes Roundcube, as a result of which many hosting companies around the world such as HostGator, Media Temple, Gandi, OVH and others use RoundCube. Roundcube Webmail IMAP client was also incorporated into epesiBIM (epesi Business Information Manager), a web-based, open source CRM-like application. Apple's Mac OS X 10.7 Lion Server operating system provided Roundcube as the default webmail client in Mail Server. In prior versions, SquirrelMail had been the default client. In 2013, Iran's Ministry of ICT launched the national email service at mail.post.ir which used Roundcube. Synology Inc.'s DiskStation Manager (DSM) uses Roundcube for their Mail Station package. See also Comparison of email clients Internet Messaging Program References External links Free email software Free software programmed in PHP Web-based email clients for Linux Webmail Free software webmail