What Is Zimbra Email Server
Zimbra Collaboration, formerly known as the Zimbra Collaboration Suite (ZCS) before 2019, is a collaborative software suite that includes an email server and a web client.
Zimbra is an open source server and secured & fast customer software for messaging and collaboration. The software consists of both client and server components, and a desktop client. Zimbra also provides native two-way sync to many mobile devices. It synchronize mail, contacts, and calendar items with open-source mail clients such as Evolution and also with proprietary clients such as Microsoft Outlook.
|What Is Zimbra Email Server|
Zimbra was initially developed by Liquid Sys, which changed their name to Zimbra, Inc. on 26 July 2005. The Zimbra Collaboration Suite was first released in 2005. The company was subsequently purchased by Yahoo! on September 17, 2007, and later sold to VMware on January 12, 2010.
|What Is Zimbra Email Server|
The software consists of both client and server components, and at one time also offered a desktop email client, called Zimbra Desktop. Two versions of Zimbra are available: an open-source version and a commercially supported version (“Network Edition“) with closed-source components such as a proprietary Messaging Application Programming Interface connector to Outlook for calendar and contact synchronisation.
The now-discontinued Zimbra Desktop was a full-featured free desktop email client. Development was discontinued under VMware’s stewardship in 2013 but was restarted in February 2014, but was ended again by 2019. The web client featured an HTML5 offline mode starting with version 8.5.
Zimbra Web Client
The Zimbra Web Client is a full-featured collaboration suite that supports email and group calendars. At one time it featured document-sharing using an Ajax web interface that enabled tooltips, drag-and-drop items, and right-click menus in the UI. Today it has document sharing, chat, and videoconferencing. Also included are advanced searching capabilities and date relations, online document authoring, “Zimlet” mashups, and a full administration UI. It is written using the Zimbra Ajax Toolkit.
The Zimbra Server uses several open-source projects (see the section, Included open-source projects). It exposes a SOAP application programming interface to all its functionality and is also an IMAP and POP3 server. The server runs on many Linux distributions. It also can be run on a Windows Server, using a virtual machine and using container technology. It supports CalDAV, CardDAV and SMTP for messaging, LDAP for directory services, and Microsoft Active Directory (AD). Zimbra uses Postfix for its MTA functionality. It includes technology from ClamAV, SpamAssassin and DSPAM for anti-malware features and S/MIME for email signing and encryption. OS X Server support was dropped with version ZCS 7.0.
Zimbra can synchronize mail, contacts, and calendar items with open-source mail clients such as Mozilla Thunderbird and Evolution and also with proprietary clients such as Microsoft Outlook and Apple Mail, either through proprietary connectors or using the ActiveSync protocol, both available exclusively in the commercially supported version. Zimbra also provides native two-way sync to many mobile devices.
The closed source variant Network edition is distributed under the Zimbra Network Edition EULA.
Starting with version 8.5 the Zimbra source code is available under the terms of the GNU General Public License version 2 (backend) and the Common Public Attribution License version 1 (frontend).
Zimbra Public License
Previous versions were released under the Zimbra Public License (ZPL). The Free Software Foundation accepts the license as being a free software license and refers to it as being identical to the Yahoo! Public License with the exception that Zimbra, Inc. provides the license, rather than Yahoo!.
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