This link has been bookmarked by 80 people . It was first bookmarked on 02 Mar 2006, by someone privately.
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thedaryl"Powerful and flexible
Citadel is easy, versatile, and powerful, thanks to its exclusive "rooms" based architecture. No other platform seamlessly combines so many different features using this familiar and consistent metaphor. Packed with features
email
calendar/scheduling
address books
bulletin boards (forums)
mailing list server
instant messaging
wiki and blog engines
multiple domain support
a powerful web interface
rss aggregation
see the full feature list...
True open source
Citadel is 100% open source software using the GNU General Public License. It's not a crippled, cut-down version of some expensive "enterprise" edition. The software you download here is the very best available, and it's all free software." -
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Mickaella CompperCitadelle est facile, polyvalent et puissant, grâce à ses "rooms"exclusives sur la base d'architecture. Aucune autre plate-forme transparente combine autant de caractéristiques différentes en utilisant cette métaphore familière et cohérente.
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Peter MeyerCitadel is a highly integrated Groupware Platform with a AJAX-powered “Web 2.0” interface, but also providing SMTP, IMAP, POP3 and GroupDAV access to its content.
Citadel offers versatile email services with very low administration needed. It provides its own implementations of these server protocols: IMAP, POP3, SMTP, ManageSieve, XMPP, Citadel.
It is 100% free open source, its codebase is written mostly in C.
Feature list
Email, calendaring, address books, bulletin boards, instant messaging, and more … all in one tightly integrated server package. Unlike other open source groupware systems, all of Citadel's data stores are built-in. All that tedious mucking about with dependencies and config files is a thing of the past.
High-performance, multiprotocol, multithreaded server engine
Wiki and blog engines built in. Citadel is a collaboration server and a content management system!
Web browser, telnet/SSH, local client software accessible
Standards-compliant e-mail built in: IMAP, POP3, ESMTP
Group calendaring and scheduling (WebDAV, GroupDAV, and Kolab-1 compatible)
Built-in listserv (mailing list server)
Integrated server-side mail sorting and filtering. Users can choose between an easy-to-use web based rules editor, or the power of writing complex scripts using the industry standard Sieve language.
Support for push e-mail and mobile devices
Database-driven, single-instance message store
Built-in full text index for fast searching
Authenticated SMTP for remote email submission
Multiple domain support
Built-in integration with perimiter email filtering technologies such as Realtime Blackhole Lists (RBL's), SpamAssassin, and ClamAV antivirus
Server-to-server replication. Users in any number of domains can be spread out across any number of Citadel servers, allowing you to put data where you need it, and enabling infinite horizontal scalability.
Web-based access to email, calendars, and everything else through a powerful AJAX-style front end
Very strong support for “public folders” and message forums.
Built-in instant messenger service
SSL/TLS encryption for all protocols
Citadel is true open source software. Unlike other groupware servers, it isn't a cut-down version of an expensive proprietary “pro” version. We make our very best work available to everyone on the same terms. 100% of our code is covered by the GNU General Public License (GPL3).
Providedsoftware freeware opensource server collaboration sharing groupware wiki email cms calendar forums mailinglist blog addressbook
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JR WoodwardA different kind of messaging and collaboration platform
Ajax Collaboration Internet Online Tools Web Web2.0 WebDesign
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P ONCitadel bbs
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Kalle von der Kueste(tags: web2.0 groupware email collaboration calendar)
web2.0_groupware_email_collaboration_calendar groupware collaboration calendar opensource software email web
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Bryan Bailliache"Citadel is a unique approach to messaging and groupware. A Citadel system is made up of imaginary physical spaces called
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