Horde GroupWare Webmail Free 4: New Version

November 24, 2011 / General Discussion

Horde Webmail is even more of a collaborative framework of services. And since June 14, a new version of Horde is out. This is version 4, which is a major new release.

The following new features and changes improved overall Horde 4 performance.

  • Completely rewritten in PHP 5
  • New installation procedure through a PEAR installer
  • Simplifying the configuration process
  • Support for ActiveSync
  • Layout without frames
  • Group preferences
  • Improving the cache and reducing the size of the sessions.
  • Shared libraries are faster
  • Reducing dependencies on external libraries
  • Many miscellaneous improvements.


  • Many interface improvements including a vertical side panel
  • Complete rewrite of IMAP support for better support and a great performance improvement
  • Increased and improved filter capabilities and research
  • Rapid response capability
  • Improved notifications of new posts
  • Better display of HTML mail
  • HTML Signature
  • Automatic saving of drafts
  • Support for custom IMAP flags
  • Reduced memory usage

Address book:

* Search for duplicates and opportunities to merge contacts


  • New AJAX interface with integrated task management
  • New interface for mobile
  • Resource planning
  • Colorization of the calendar
  • Tagging system
  • Support for cross-timezone
  • Support CalDAV
  • Reinforced exceptions for recurring events
  • Improved messages for notifications and invitations.

Management tasks:

  • New AJAX interface in the calendar
  • System task list
  • Colorization task lists
  • Quickly add tasks