also used by many mobile clients, and by using the Z-push software on the server side, ActiveSync requests can be translated and such clients can effectively talk to a Kopano server as well. Kopano Core generally stores its data in a MySQL-compatible database. Attachments can be saved on the filesystem, Amazon S3, or the database may be used to place chunked blobs. The server can get its user information from LDAP/Active Directory, Unix user accounts or the MySQL database. Additional gateways for the IMAP, POP3 and iCalendar/CalDAV protocols are provided. Kopano WebApp (and DeskApp which is the equivalent stand-alone application) are full-featured applications which include support for mail, calendars, group calendars, public folders and many more functionalities. WebApp can be integrated with many plugins which can be added to the installation. Kopano provides several plugins such as Files (cloud and storage access within WebApp), WebMeetings (video conference) and S/MIME (which allows reading and sending encrypted email). Any developer can, however, write additional plugins using the WebApp plugin API. Edition Kopano is available as a freely downloadable community edition. The community edition gives the users access to the main branch builds which includes the very latest code as overnight builds. The Kopano community edition includes all the advanced and premium features such as WebMeetings (Video Conferencing), Kopano Files (cloud storage access) and the S/MIME plugin (which allows sending or receiving encrypted email). Kopano is also available as a paid-for product where official Kopano QA tested releases are provided and supported directly by Kopano. Kopano was briefly available in a few Linux distributions. The package in e.g. Debian saw its last update in 2020/Q1, and openSUSE removed it in 2021/Q1 following build failures with contemporary toolchains. Version history See also List of collaborative software References External links Free email software Free groupware Wireless email Data synchronization Collaborative software Groupware Ajax (programming) Groupware Software using the GNU AGPL license