Citadel is a highly integrated Groupware Platform with a Web 2.0 enabled Web 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, Citadel.

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Ohloh Analysis Summary

Updated 31 Jul 2010 18:08 UTC


Ratings & Reviews

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5.0/5.0

Based on 14 user ratings.

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over 3 years ago Avatar
Citadel is the un-taped groupware

  by ax25

If you think of writing groupware and have not checked out the capabilities of citadel, you should check the documentation. The documentation about how you can make use of the software from a programming standpoint is out if this world!

This software has most of what you would want in groupware (hint, user driven additions). In addition, the project is responsive to additions that will add to the project and are extremely ... [More] helpful.

Easy to set up. Easy to use, Most importantly, features that are well thought out and implemented.

Love this project!

Thanks to all the Citadel folks for this great package!

ax25
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over 3 years ago Avatar
Searching for a mail server - found some groupware

  by mcsonique

I use citadel as an easy to install and use mail server solution. Being in a hurry installing an configuring mail services for customers that want to do basic administration themselves after setup I found citadel is a great choice as it provides a clean and easy installation (build and config scripts, debian packages) and both a shell- and a web-bases administration UI.

It's nice to have all those features as Calendaring, Address books ... [More] and stuff but what I love most about it that you can hand an installation over to a non-technician with the good feeling that he can add and alter e-mail users himself. And: there is quite zero integration work to do: IMAP, POP, SSL etc. just works out of the box. No hacking around in cryptic config files. It just works.

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    New features in Citadel 7.60

    There are some exciting features that have been completed in Citadel 7.60, and we thought you might be interested in knowing about two of them.

    The first new feature is a big change to how Citadel uses LDAP. You might know that prior to ... [More] Citadel 7.50, we had the ability to populate an external LDAP address book with the contents of Citadel's global address book. As it turned out, this was not very useful. It was deprecated in 7.50 and has been removed in 7.60. We were fairly certain that nob… [Less]

    New features in Citadel 7.60

    There are some exciting features that have been completed in Citadel 7.60, and we thought you might be interested in knowing about two of them.

    The first new feature is a big change to how Citadel uses LDAP. You might know that prior to ... [More] Citadel 7.50, we had the ability to populate an external LDAP address book with the contents of Citadel's global address book. As it turned out, this was not very useful. It was deprecated in 7.50 and has been removed in 7.60. We were fairly certain that nob… [Less]

    Roadmap for Citadel 7.60

    We normally don't preannounce, but there are some exciting features that have been completed for the upcoming Citadel 7.60 release, and we thought you might be interested in knowing about two of them.

    The first new feature is a big change to ... [More] how Citadel uses LDAP. You might know that prior to Citadel 7.50, we had the ability to populate an external LDAP address book with the contents of Citadel's global address book. As it turned out, this was not very useful. It is deprecated in 7.50 and wi… [Less]

    Citadel 7.50 released

    We are pleased to announce version 7.50 of the Citadel system, now available via as source code, Easy Install, and packages for selected Linux distributions.

    This is a *big* update. New features:

    * Recurring events are now ... [More] supported across the entire calendar system, as well as all-day events which span multiple days.
    * The entire WebCit framework is now templatized, allowing customization for individual sites without modifying the program code.
    * The mailbo… [Less]

    Citadel.org security advisory - 2009-march-23

    I. BACKGROUND

    WebCit is a middleware application which provides a web based user interface for the Citadel groupware system. More information may be found at the project's site at the following URL:

    II. DESCRIPTION AND ANALYSIS

Read all citadel articles…

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Project Cost

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Codebase 198,215
Effort (est.) 51 Person Years
Avg. Salary $ year
$ 2,803,411