Free groupware software for linux

Open Blue Lab project is a modular ERP, built on a plugin architecture. Each business domain (such as Groupware, Financial, HCM, PLM, or SCM) is separated into subdomains which are implemented through plugins.
This form permits you to create all the information related to a contact you are in relation with, during, for example, a phone call. Once totally expanded, this form looks like the image on your right. A click on orange borders will open or close the corresponding section.
This form is directly generated from the UML model that describes CRM informations system. Layout like multicomuln is specified in a very easy way.
Enhancements:
- The CSS style was corrected by deleting the footer, changing skins, improving the search button, and adding PNG transparency.
- The action portlet was fixed up.
- Some messages have been translated.
- You can now drag and drop portlets.
- The search bar has been improved, so you can search by contact, city, company, or any other fields.
- You can now set prority on tasks.

NullLogic Groupware is a multi-user web-based groupware package designed for contact management and event scheduling, which includes additional features such as instant messaging, public forums, shared hyperlinks, file bases, a web e-mail client, and a simple order processing system.
The main goal of NullLogic Groupware is to make your data accessible to you from anywhere at any time without the need for special software to be installed on the client computer. All you need is a web browser.
Additional features include private messaging, public discussion forums, webmail, shared bookmarks, file sharing, call tracking, order processing, an XML-RPC API, and integrated POP3 and SMTP servers.
Enhancements:
- fixed zero domain ownership on newly created mail filters
- added ClamAV support to sample scanner script
- cleaned up some of the page transitions in mod_mail
- SQL subsystem was rewritten to handle an arbitrary number of cached queries

Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project. Horde Groupware bundles the separately available applications Kronolith, Turba, Nag and Mnemo.
Horde Groupware can be extended with any of the released Horde applications or the Horde modules that are still in development, like a file manager, a bookmark manager, a forum or a wiki.
Main features:
- Public and shared resources (calendars, address books, tasklists and notepads)
- Unlimited resources per user
- Translated into 41 languages including right-to-left scripts and unicode support
- Global categories (tags)
- Customizable portal screen including applets for weather, quotes, etc.
- 25 different interface themes
- Online help system
- Import and export of groupware data from other applications
- Synchronization with PDAs, mobile phones, groupware clients
- Integrated user management, group support and permissions system
- User preferences with global default values
- Strong integration, e.g. address book lookups in meeting planning, task due dates in calendar
- Platform independant, works on any web server with PHP support, i.e. Linux, Windows, Solaris, Mac OS X Server
- Abstract database support, e.g. for MySQL, PostgreSQL, Oracle, Microsoft SQL-Server
Calendar
- Day, week, work week, month and year views
- Recurring and all-day events
- Alarms with email notifications
- Simple and advanced search forms
- Meeting planning, also with other calendar applications
- Email notification about changed events
- Free/busy information exchange with other calendar applications
- Subscription of remote calendars
- Integration into external clients like Apple iCal, Mozilla Sunbird, Microsoft Outlook
- iCalendar and iTip support
Contacts
- Distribution lists/email groups, also across address books
- Simple and advanced search forms
- Customizable address book listings
- vCard support
- Address book pager (rolodex)
- Customizable contact fields
- Integration of existing address books
Tasks
- Priorities and due dates
- Searchable descriptions
- Email notification about changed tasks
- Integration into external clients like Apple iCal, Mozilla Sunbird, Microsoft Outlook
- vTodo support
Notes
- Fulltext search
- Character counter
Enhancements:
- A local arbitrary file deletion vulnerability has been fixed.
- The Oracle session handler has been rewritten.
- vTimezone support for iCalendar data and ORG support for vCard data have been added.
- Samba and Cyrus SQL authentication drivers, automatic Web root detection, signature dimming, and compatibility of generated ZIP files have been improved.
- Calendar support for non-ASCII character sets has been improved.
- vCard support has been improved.
- Brazilian Portuguese, Catalan, Dutch, Finnish, French, German, Portuguese, and Traditional Chinese translations have been updated.

Tiki CMS/Groupware (aka TikiWiki) is a powerful open-source Content Management System (CMS) and Groupware that can be used to create all sorts of Web applications, intranets, portals, sites, and extranets.
Major features include articles, forums, newsletters, blogs, a file/image gallery, a Wiki, drawing, trackers, a directory, polls/surveys and quizzes, a FAQ, chat, a banner management system, Webmail, a calendar, Ephemerides, maps, charts, Mobile Tiki (PDA and WAP access), RSS feeds, a category system, a theme control center, workflow, live support, Shoutbox, ACLs, and more.
Main features:
- The Wiki
- Image Gallery
- Articles and submissions
- Blogs
- JgraphPad drawings
- Mobile Tiki
- Voice Tiki
- Banner ads
- Dynamic Content System
- File Galleries
- Featured Links
- Comments
- Forums
- ChatRooms
- Communications center
- Polls
- Category system
- FAQs
- Quizzes
- RSS feeds
- HTML pages
- HTML pages dynamic
- Surveys
- Trackers
- Maps
- Newsletters
- Directory
- Ephemerides
- Shoutbox
- Search
- Games
- Live Support System
- Galaxia Workflow Engine
- Charts
- My Tiki section
Enhancements:
- This release contains fixes for some security issues, many bugfixes, enhancements, and new features.

Enterprise CRM and Groupware System is a PHP/PostgreSQL system.
Enterprise CRM and Groupware System offers multi-layered access to data and the following features: advanced CRM (similar to XRMS), project management tools, email ticketing, Web site news, file sharing, and ERP.
Whats New in 1.2.8 Stable Release:
- This release fixes several bugs, including correcting user access to Gantt charts and replacing a missing symlink.
- New functionality has been added to correctly format letters sent from the mail facility and a new weekly report.
- All users should upgrade.
Whats New in 2.0 Beta 1 Development Release:
- Modules enabled by default are Contacts, CRM, and Projects.
- These are considered stable, and should be problem-free for most people.
- Ticketing and Calendar are also available, though these are known to contain some issues, and more testing is definitely required.

Dogfood provides a groupware and CRM system.

Dogfood is an groupware and CRM system based on phprojekt. It featues an improved mail module and tightened relationships.

In case you forget, or miss the root password of a new system, dont worry its here. The default password for new root accounts is: kibbles-n-bits. Without the quotes.

IGSuite is an open source web-based groupware suite.
Main features:
- Contact CRM management
- Webmail
- full-featured and shared Calendar
- Digital documents archive
- ToDo management
- Fax system
- Wiki
- Project management
- Preferences per user
- PDA interface
- Available in different languages
- Different skins and layout
- Multiplatform (Linux & Windows)