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Citadel
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Citadel

Overview
Synopsis

Citadel is an open source software for email, collaboration, groupware and content management that is quick to set-up on a company's hardware or in the cloud. It is 100% free open source, and its codebase is written mostly in C .

Category

Calendaring Softwaree

Features

•Bulletin Boards
•Address Books
•Multiple Domain Support
•Email Services
•Instant Messaging

License

Proprietary

Price

Contact for Pricing

Pricing

Subscription

Free Trial

Available

Users Size

Small (<50 employees), Medium (50 to 1000 employees), Enterprise (>1001 employees)

Company

Citadel

What is best?

•Bulletin Boards
•Address Books
•Multiple Domain Support
•Email Services
•Instant Messaging

What are the benefits?

•Easy to install
•Easy to use
•Versatile and powerful
•Low administration needed
•Access data whenever

PAT Rating™
Editor Rating
Aggregated User Rating
Rate Here
Ease of use
7.6
7.1
Features & Functionality
7.6
9.0
Advanced Features
7.6
8.5
Integration
7.6
9.0
Performance
7.6
8.8
Customer Support
7.6
9.0
Implementation
Renew & Recommend
Bottom Line

Citadel is 100% free open source software for email, collaboration, groupware and content management that is quick to set-up on a company's hardware or in the cloud

7.6
Editor Rating
8.6
Aggregated User Rating
2 ratings
You have rated this

Citadel is an open source software for email, collaboration, groupware and content management that is quick to set-up on a company's hardware or in the cloud. It is 100% free open source, and its codebase is written mostly in C while 100% of its code is covered by the GNU General Public License.

Citadel is a highly integrated groupware platform with AJAX-powered "Web 2.0" interface, but also providing built-in email SMTP, IMAP, POP3, Group calendaring and scheduling (WebDAV, GroupDAV, and Kolab-1 compatible), address books, and bulletin boards.

Citadel has a built-in: Wiki and blog engines, listserv (mailing list server), full-text index for fast searching, instant messaging, RSS Feed Aggregation, and integration with perimeter email filtering technologies.

Citadel provides a high-performance, multiprotocol, multithreaded server engine, an integrated server-side mail sorting and filtering, and server-to-server replication so that users in many domains can be spread out across any number of Citadel servers. Citadel is accessible through a web-browser for access to emails, calendars and more, and also through telnet/SSH, and local client software.

Citadel is database-driven, single-instance message store with multiple domain support as well as support for "public folders" and message forums. Citadel delivers authenticated SMTP for remote email submission, and it offers SSL/TLS encryption for all protocols.

Citadel is easy, versatile, and powerful, thanks to its exclusive "rooms" based architecture, it offers a one-step installer that automatically downloads, installs, and configures the complete Citadel system on a computer. It is easy to install nature eliminates source code manually, and it eliminates package dependency problems.

 

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Ease of use
Features & Functionality
Advanced Features
Integration
Performance
Customer Support
Implementation
Renew & Recommend

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