Citadel

Free • Open Source
WebMail Provider
Calendar App
Linux
Online

What is Citadel?

Is a collaboration suite (messaging and groupware). It is designed to run on open source operating systems such as Linux or BSD. 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, GroupDAV and XMPP. All protocols offer OpenSSL encryption for additional security.

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.

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

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Citadel Features

Real time collaborationMultiple users can work together in Citadel simultaneously.

Citadel information

LicensingOpen Source and Free product.
Alternatives17 alternatives listed

Supported Languages

English

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Our users have written 0 comments and reviews about Citadel, and it has gotten 7 likes

Citadel was added to AlternativeTo by mbnoimi on and this page was last updated .

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citadel is the truly open source alternative

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Tags

groupware
collaboration
Chat
Calendar
WebMail Provider

Categories

Office & Productivity • Online Services • Social & Communications

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