Citadel/UX

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Citadel/UX
Bulletin Board view in WebCit
Bulletin Board view in WebCit
Calendar view in Webcit
Calendar view in Webcit

More screenshots on the project site
Developer: citadel.org
Latest release: 7.20 / Sep 2007
OS: Unix, Linux
Genre: Groupware
License: GPL
Website: www.citadel.org

Citadel (specifically, Citadel/UX) is a variant of the Citadel family of programs which became popular in the 1980s and 1990s as a bulletin board system platform. It is designed to run on open source operating systems such as Linux or BSD. Although it is still being used widely on bulletin board systems, in 1998 the developers began to expand its functionality to a general purpose groupware platform.

The project is referred to simply as "Citadel" in its documentation and on its web site. However, the project's leadership no longer asserts a previous claim that Citadel/UX is the only remaining actively developed Citadel implementation.

Citadel uses the Berkeley DB database for all of its data stores, including the message base.

In order to modernize the Citadel platform for the Internet, the Citadel/UX developers added functionality such as shared calendars, instant messaging, and built-in implementations of Internet protocols such as SMTP, IMAP, Sieve, POP3, and GroupDAV. All protocols are OpenSSL encryption-enabled for security reasons.

Users of Citadel/UX systems also have available to them a web-based user interface which employs Ajax style functionality to allow application-like interaction with the system.

The software is open source, and released under the GPL license.

v • d • e
Free open-source collaborative software
Client-Server Buni Meldware · Bongo · Citadel · Kolab · OpenGroupware.org · Open-Xchange · Scalix · Zimbra
Web based Citadel · Group-Office · Horde Groupware · KnowledgeTree · Open-Xchange · phpGroupWare · Simple Groupware · eGroupWare
Personal information managers Evolution · Kontact · Mozilla Sunbird · Mozilla Thunderbird/Lightning
Retrieved from "http://en.wikipedia.org/wiki/Citadel/UX"
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