Free groupware international software for linux

Horde Groupware Webmail Edition is a free, enterprise ready, browser based communication suite. Users can read, send and organize email messages and manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.
Horde Groupware Webmail Edition bundles the separately available applications IMP, Ingo, Kronolith, Turba, Nag and Mnemo.
The project 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:
- IMAP and POP3 webmail client
- Message filtering
- Message searching
- HTML message composition with WYSIWIG editor
- Spell checking
- Built in attachment viewers
- Encrypting and signing of messages (S/MIME and PGP)
- Quota support
- Keyboard navigation
- Full character set support for folders names and email messages
- Conversation view of all messages in a thread
- Folder tree in left menu pane
- Message previews in mailbox view
- Downloading of message attachments in a ZIP file
- Fetching of messages from external email accounts
- Flexible, individual alias addresses
- IMAP folder subscriptions
- Shared IMAP folders
- Graphical emoticons
- Support for mailing list headers
- Forwarding of multiple messages at once
- Attachments sent as links
Enhancements:
- A local arbitrary file deletion vulnerability and XSS vulnerabilities in the Webmail search screen and thread view have been fixed.
- Displaying of PGP messages has been improved.
- mailto: links in HTML email messages are turned into IMP compose links.
- The Oracle session handler has been rewritten.
- Validation of some email distribution lists has been fixed.
- Compatibility with Internet Explorer 7 has been improved.
- Blacklists and whitelists when using the IMAP driver have been fixed.
- Many small bugfixes and improvements have been made.

POGI is the PHP OpenGroupware Interface. It allows PHP enabled websites to be easily integrated with the powerful OpenGroupware groupware server. Current versions of POGI work with PHP version 4 and 5.

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.

Scalable OpenGroupware.org (SOGo in short) is a groupware server built around OpenGroupware.org (OGo) and the SOPE application server.
We are constantly improving functionnalities and the user experience. So far, we improved the user interface to use AJAX and we focused on the integration of the Mozilla suite (Thunderbird, Sunbird/Lightning).
We also added CalDAV support so that any calendaring application which uses this standard protocol can now communicate with SOGo.
Main features:
- Complete redesign of the user-interface to give SOGo a look and feel similar to the Mozilla Thunderbird and Sunbird applications
- Calendar and address book sharing
- Mutiple address books and LDAP-based address books
- Concept of tasks
- Contacts in vCard
- Integration with the Mozilla application suite
Enhancements:
- A superuser can be defined.
- The raw message source can be viewed.
- Compatibility was checked with PostgreSQL 8.2.
- The menus of the Web date selector would no longer appear.
- An SQL constraint violation would prevent task entries from being recorded.
- The due date in tasks was incorrectly set.
- It was impossible to empty the start and the due date in the task editor from the moment they were set.
- IMAP folders with non-ASCII characters can now be accessed.
- The quotas of the selected mailbox are displayed (if available).
- Users were prevented from accessing shared resources in DAV.

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.

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

Meldware Communication Suite is a platform independent groupware package consisting of:
Meldware Mail
Meldware Calendar
Meldware Webmail
Meldware Secure Administration System
Together the package provides support for thousands of users to concurrently send and receive email and schedule meetings. MCS uniquely allows you to store all messages and scheduling events in nearly any database and runs on nearly all popular software and hardware platforms.
Additionally, while the scheduling and calendaring services are able to be installed separately, the integrated featureset provides both a unique and powerful experience to both users and server-side Mail Based Applications and Collaboration Based Application Services.
The MCS platform provides security integration using LDAP sources including Microsoft Active Directory as well as flat-file and Database sources. Additionally, extensible security allows custom authentication/authorization sources.
Enhancements:
- IMAP is now stable with Mozilla Thunderbird and POP/SMTP are production ready.
- New Filestore code was implemented and many improvements were made in mailbox and storage code.