Free open webmail software for linux

Open WebMail is a webmail system based on the Neomail version 1.14 from Ernie Miller. Open WebMail is designed to manage very large mail folder files in a memory efficient way.
OpenWebMail also provides a range of features to help users migrate smoothly from Microsoft Outlook to Open WebMail.
Main features:
For Users:
- Auto Login
- Multiple Languages/Multiple Charsets
- Strong MIME Message Capability
- Full Content Search
- Draft Folder Support
- Confirm Reading Support
- Spelling Check Support
- vCard compliant Addressbook
- POP3 Support
- Mail Filter Support
- AntiSpam Support through SpamAssassin (http://www.spamassassin.org)
- AntiVirus Support through ClamAV (http://www.clamav.net)
- Calendar with Reminder/Notification Support
- Webdisk Support
- HTTP Compression
For System:
- Fast Folder Access
- Efficient Message Movement
- Smaller Memory Footprint
- Graceful File Lock
- Various Authentication Modules
- PAM support
- Remote SMTP Relaying
- Virtual Hosting
- User Alias
- Pure Virtual User Support
- Per User Capability Configuration
- Persistent Running through SpeedyCGI

OverLook is a branch of the famous e-mail client SquirrelMail, transformed for being an usable application also by a less expert user, accustomed using other tools for the management of his mail.
OverLook Webmail has not been only changed the skin, but the usability of the entire interface, that its now more intuitive, fast and efficient.
Enhancements:
- New themes have been added and new functionality has been implemented.

Open BEAGLE is a C++ Evolutionary Computation (EC) framework. It provides an high-level software environment to do any kind of EC, with support for tree-based genetic programming, bit string and real-valued genetic algorithms, and evolution strategy.
The Open BEAGLE architecture follows strong principles of object oriented programming, where abstractions are represented by loosely coupled objects and where it is common and easy to reuse code.
Open BEAGLE is designed to provide an EC environment that is generic, user friendly, portable, efficient, robust, elegant and free.
With Open BEAGLE, the user can execute any kind of EC, as far as it fulfills some minimum requirements. The only necessary condition is to have a population of individuals to which a sequence of evolving operations is iteratively applied.
So far, Open BEAGLE supports most mainstream EC flavors such genetic programming, bit string and real-values genetic algorithms, and evolution strategy. It also includes support for advanced EC techniques such multiobjective optimization and co-evolution.
The user can take any of these specialized frameworks and modify them further to create his own specialized flavor of evolutionary algorithms.
Main features:
User Friendliness
- Considerable efforts were deployed to make the use of Open BEAGLE as easy and pleasant as possible. Open BEAGLE possesses several mechanisms that offer a user friendly programming interface. For example, the memory management of dynamically allocated objects is greatly simplified by the use of reference counting and automatic garbage collection. The programming style promoted is high-level and allows rapid prototyping of applications.
Portability
- The Open BEAGLE code is compliant with the C++ ANSI/ISO 3 standard. It requires the Standard Template Library (STL). No specific call in the core libraries are made to the operating system nor to the hardware.
Efficiency
- To insure efficient execution, particular attention was given to optimization of critical code sections. Detailed execution profiles of these sections were done. Also, the fact that Open BEAGLE is written in C++ contributes to its overall good performance.
Robustness
- Many verification and validation statements are embedded into the code to ensure correct operation and to inform the user when there is a problem. Robust mechanisms for periodically saving the current evolution state have also been implemented in order to enable automatic restart of interrupted evolutions.
Elegance
- The interface of Open BEAGLE was developed with care. Great energy was invested in designing a coherent software package that follows good OO and generic programming principles. Moreover, strict programming rules were enforced to make the C++ code easy to read, understand and, eventually, modify. The use of XML as file format is also a central aspect of Open BEAGLE, which provide a common ground for tools development to analyze and generate files, and to integrate the framework with other systems.
Free Sourceness
- The source code of Open BEAGLE is free, available under the GNU Lesser General Public License (LGPL). Thus, it can be distributed and modified without any fee. (See section copyright for further details.
Enhancements:
- Several fixes to allow compilation on Mac OS X
- Fixes in headers inclusion to allow precompiled headers

RoundCube Webmail is a browser-based multilingual IMAP client with an application-like user interface.
RoundCube Webmail provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation and message filters. RoundCube Webmail is written in PHP and requires the MySQL database. The user interface is fully skinnable using XHTML and CSS 2.
Main features:
- Multilingual capabilities
- Full support for MIME and HTML messages
- Compose messages with attachments
- Multiple sender identities
- Basic address book
- Find-as-you-type address book integration
- Create or remove custom message folders
- Built-in caching for fast mailbox access
- Support for external SMTP server
- Advanced user interface
- Unlimited users and messages
- Complete customization with skins
Enhancements:
- This release has a stable core and a new message parser (less memory consuming).
- It works with PHP safe_mode and creates valid HTML.
- It has new LDAP integration and allows you to search for contacts.

open sTeam project is an environment for cooperative knowledge management.

sTeam provides a technical platform which allows groups of students, lecturers, and any other groups to construct and arrange their individual and cooperative learning and working space.

It consists of an object-oriented server connected to a database, and Web, Java, and other (FTP, SMTP, IRC, etc.) clients.

The server is event-driven and manages all user objects as well as the communication between the connected clients.

Features that were different from most other cooperation tools is the self-organisation and self-administration by the members within the virtual environment.

Open LMS project consists of a learning management system.
OpenLMS is a Learning Management System (LMS) made at the Department of Geography, NTNU.
The system is a fully functional LMS with support for group collaboration, file sharing, distribution of lectures, and other supporting features.
It is a good tool for distributing lecture notes to groups of students, and for facilitating collaboration for groups of students and teachers.
The system has successfully been used at the Dept. of Geography at NTNU in Trondheim Norway, for three years. It is continuously further developed and was released as OpenSource software last year.
OpenLMS now supports English (core language) and Norwegian. Steps has been taken to translate for further languages.
Scorm, Dublin Core, AICC etc. could be important factors in systems like OpenLMS and similar LMS/LCMS. Support for exporting objects for these standards will probably be incorporated into OpenLMS. HOWEVER - the focus of standards for the exchange of learning objects often overshadows the lack of a culture for sharing within the organizations in question.
This very resource-demanding part of a LMS/LCMS is therefore not focused at the present stage in the development.
Main features:
- upload lecture notes (any filetypes)
- distribute levture notes
- groupware / email to groups
- personal file archive
- assignment administration
- media archive and termbank
- organize webresources
- language support for norwegian, english and german (may easily be extended)

Open Metaheuristic (oMetah) is a library aimed at the conception of metaheuristics (i.e. genetic/evolutionnary algorithms, tabu search, simulated annealing, ant colony algorithms, etc.). Open Metaheuristic library follows the "adaptive learning search" approach in the design of metaheuristics (an approach inspired from the "adaptive memory programming").
The oMetah core code design is separated in three components : algorithms, problem and communication. You can easily add your own metaheuristic and test it on the implemented problems, or add your own problem, and use the implemented metaheuristics to solve it.
You also have the choice of the way the algorithm and the problem are linked (static link, network, webservice, etc.).
It is mainly designed to handle continuous or mixed-integer problems, often met in engineering applications.
oMetah is written in C++, using the Standard Template Library.
Enhancements:
- The Python and network communication protocols between metaheuristics and problems are now usable.

Open Beat Box (OBB) is an open-source beat box ( a virtual drum machine ).
We are still in an early stage of development but we aim full drum machine functionalities.
Main features:
- Highly customizable graphical interface, including bitmap skins and variable shape widgets.
- Floating tools : realy interesting with multi-screen.
- Skin aware help system that update the images acording to the skin you curently use.
- Plug-in architecture for sound effects.
- Portability : Windows, Mac, Unix
- Cross-platform file compatiblitily.
- Real-time preview and offline rendering for realy complex effect that cant be added real-time on your machine
- Distributed rendering over multiple computers.
- Customizable sound sample packages.
- Customizable keyboard shortcuts.
- Matel Power glove input driver.
Enhancements:
- Code major restructuration
- More performance
- Added XML Skins
- Gui enhancements (drop shadow on labels, centered spinbox label, mousescroll on slidebars)