Citadel

    • Free • Open Source
    • 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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    Said about Citadel as an alternative

    citadel is the truly open source alternative
    Positive comment • almost 5 years ago • as an alternative to   SmarterMail Mail Server

    Categories

    Office & Productivity • Online Services • Social & Communications

    Tags

    • groupware
    • real-time-collaboration
    • webmail-service
    • Webmail

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    Citadel

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     Official Website
    Citadel

    Summary

    Our users have written 0 comments and reviews about Citadel, and it has gotten 6 likes

    • Open Source and Free product.
    • 17 alternatives listed

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    Citadel was added to AlternativeTo by mbnoimi on Jan 25, 2013 and this page was last updated Sep 13, 2021.

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