Citadel

  •        10504

Citadel is a collaboration suite (messaging and groupware). It provides support for Email, Calendaring/Scheduling, Address books, Bulletin boards, Mailing List Server, Instant Messaging, Wiki, Multiple domain support.

Its features include:

  • 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
  • Web browser, telnet/SSH, local client software accessible
  • Standards-compliant e-mail built in: IMAP, POP3, ESMTP
  • Group calendaring and scheduling (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.
  • 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).

http://www.citadel.org/

Tags
Implementation
License
Platform

   




Related Projects

James


James (a.k.a Java Apache Mail Enterprise Server) is a 100% pure Java SMTP and POP3 Mail server, and NNTP News server designed to be a complete and portable enterprise mail/messaging engine solution based on currently available open messaging protocols.

Zimbra - Email and Collaboration Suite


Zimbra is the most capable open source email and collaboration suite available today. It provides support for Email, Shared calendar, Document management, Pop3, Address book and lot more. Mails could be tagged and search support is also provided. Zimbra is considered as an alternative to Microsoft Exchange Server.

Courier Mail Server


The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, Webmail, calendaring, and mailing list services.

deepOfix - Mail Server


The deepOfix Mail Server makes it possible for organisations with minimal technical expertise to have robust messaging infrastructure. It has built in LDAP support, SMTP, POP3 and IMAP services.

Ichabod Java Mail Server


Ichabod is an SMTP/POP3 server, with mailing list support. Administration is via a web, or email You can also use Ichabod to make your app receive email as an SMTP server. You can also easily extend it by subclassing to add your own behaviors.



YPOPs! - POP3/SMTP Access to Yahoo


YPOPs! is an application which emulates a POP3/SMTP mail server and provides free POP3 and SMTP access to Yahoo! Mail. It does not depend on Yahoo's POP3/SMTP mail server. You can use a mail client of your choice!

JavaMail - Java library to build Mail and Messaging Applications


The JavaMail API is a set of abstract APIs that model a mail system. The API provides a platform independent and protocol independent framework to build Java technology based email client applications. The JavaMail API provides facilities for reading and sending email. Service providers implement particular protocols. Several service providers are included with the JavaMail API package; others are available separately.

CRSMail - JAVA based E-Mail server


CRSMail a 100% JAVA based E-Mail server. It supports SMTP, POP3, Plugins, Can listen on multiple ports, Log's everything to a log file etc.

C# Email Server - SMTP and POP3 Email Server in CSharp


C# Email Server (CES). Implements SMTP and POP3 components that can be used as a standalone server or as components in other applications. It is a port of the Java Email Server (JES). This component allows a program to accept incoming emails and process them using user defined logic.

Openmeetings - Open Source Web Conferencing


Openmeetings provides video conferencing, instant messaging, white board, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.

Dovecot - Secure IMAP and Pop3 server for Linux


Dovecot is an open source IMAP and POP3 email server for Linux or UNIX-like systems written with security primarily in mind. Dovecot is an excellent choice for both small and large installations. It is fast, simple to set up, requires no special administration and it uses very little memory. Dovecot is NOT responsible for receiving mail from other servers. Dovecot presents mail already stored on the system to mail-user agents [MUA].

Rumble Mail Server


Rumble is a mail server suite for SMTP (ESMTPSA), HTTP, POP3 and IMAP4v1 with an extensive C/C++ and Lua API for scripting. It comes with support for SSL/TLS, SQLite and MySQL and has a web-based administration and webmail feature. Additional included modules feature greylisting, DNS blacklisting, SpamAssassin support and dynamic performance scaling as well as a multithreaded structure that allows for clustering of multiple servers for one or all domains, and with the ease of the Lua API,

SharpWebMail - ASP.NET Webmail Application


SharpWebMail is an ASP.NET webmail application that is written in C#. It uses a POP3 or IMAP servers as the mailstore and sends mail through a SMTP server. It is very simple to configure (only a few settings in the web.config file). You can compose HTML messages, search your inbox, read complex mime messages, have multiple address books and much more.

DotMail


Since Microsoft is dropping the POP3 server from the next generation of Windows Server, I thought it would be a good idea to create a mail server that could utilize the SMTP server that is a part of IIS or any other SMTP server for that matter. The idea is to create a servi...

Claws Mail - Email Client and News Reader Based on GTK+


Claws Mail is a GTK+ based, lightweight, and fast e-mail client and newsreader. Supports POP3, APOP, IMAP, SMTP, SMTP AUTH, NNTP, LDAP, multiple accounts, spell-checking, addressbook, SSL, GPG, filtering, i18n, & more. It is further extended by plugins. Lots of extra functionality, like an RSS aggregator, calendar, or laptop LED handling, are provided by extra plugins.

smart messaging connector


Sending fax from a PrintDocument or a file. Sending broadcast fax. Managing (Pause/Resume/Restart) current fax job. Managing configuration of the fax server

SALAMI Mailinglist Server


SALAMI is a lightweight mailing list server. It uses freemail accounts (with SMTP/POP3 access) to receive and distribute the eMails. Hence SALAMI is intended to run on dynamic internet hosts such as routers.

Mail - POP3 client and SMTP server


POP3 client and SMTP server

Cola Bulletin Board System


This is a Java implemented Bulletin Board System. Clients could use either Telnet or Browser to connect to this server. This system contains several servers: Telnet daemon, proprietary Java Applet C/S, NNTP Client to access News Server and SMTP C/S.

Java Email Server


JES is a multi-featured hybrid MTA/MDA server written in the java programming language. It supports TLS, SSL, SMTP authentication, spam control and lot more.