Free groupware software software for linux

Contractor Software allows contractors to manage their projects and interact with customers online. A contractor can post each task of a project. Each task has a start date and estimated completion date.

The client can then always know where the project is and leave comments for the contractor on each task. The contractor can also reply to the client with a follow up comment. This enhances communication and also leaves a record for reference later.

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.

Billing Software project allows your business to track invoicing and allows your customers to view their invoices online and easily export them to Excel for saving or printing.
Invoices can also be emailed to customers right from the online application for convenience and efficiency.
Enhancements:
- This release fixes some minor bugs in the XML portions of the library files.

phpGroupWare is a multi-user groupware suite written in PHP.
It provides about 50 web-based applications, as there are the Calendar, Addressbook, an advanced Projects manager, Todo List, Notes, Email, Newsgroup- and Headlines Reader, a Filemanager and many more Applications. The calendar supports repeating events and includes alarm functions. The email system supports inline graphics and file attachments.
The system as a whole supports user preferences, themes, user permissions, multi-language support and unser groups. It includes modules to setup and administrate the working environment. The groupware suite is based on an advanced Application Programming Interface (API).
Enhancements:
- Security Fix for CVE-2007-4048
- Improved PHP 5 support
- Various bug fixes

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 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.