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Scalix is an open source e-mail and groupware server.

It was originally based on HP OpenMail, which was licensed from Hewlett Packard.

Scalix provides e-mail, calendars and other collaborative software, which are standard in groupware. It can be accessed from many different clients, most notably Microsoft Outlook, Novell Evolution (formerly Ximian) and Scalix Web Access, an AJAX-based web email and calendaring client that combines the functionality of desktop email with the ease-of-use of a browser.

Scalix comes in several different editions: Enterprise, Small Business, Appliance, Xandros, Community and Raw, with only the latter two being free software.

 Scalix 11.4.6

Free to download


Scalix Public License

Scalix Corporation


System Requirements
CPU: Pentium 4 or better
Hard disk: 1GB of space
Network interface


Support Sites:
Documentation, FAQ, Wiki, Forums

Selected Reviews:

Features include:

  • Scalix email and calendar server, a full-featured messaging and collaboration server based on Linux and open source
  • ScalixConnect for Outlook, robust third-party native and transparent Outlook support
  • Scalix Web Access, an AJAX-based cross-browser, cross-platform email and calendaring client that combines desktop email functionality with the convenience of a browser
  • ScalixConnect for Evolution, full-function email and calendaring client support for Linux desktop users
  • Scalix Wireless Solution, advanced wireless email/PIM support for Blackberries, Treos and Smartphones
  • Scalix Administration Console, AJAX-based web client for administering the Scalix server and email users
  • ScalixReady for Open Source and Commercial messaging ecosystem components, which certifies that third party software works with Scalix
  • MS Ecosystem Interoperability for seamless co-existence with MS Exchange and Active Directory
  • Individual email level backup / restore when using SepSesam
  • Full group scheduling capabilities including ability to look up free/busy information for attendees and resources, ability to find next available slot for all attendees, ability to schedule required and optional attendees as well as resources (i.e. conference rooms), ability to attach files and view attachments in meeting requests, ability to track acceptance status of attendees, and the full selection of response options for meeting requests (accept, decline, accept tentative, and propose new time)
  • Transparent, standards-based auto-conversion of meeting requests and responses between Scalix Web Access and desktop clients such as Outlook
  • Ability for a user to define a delegate for their mailbox and to assign specific rights to delegates, such as the right to manage their email and calendar
  • The ability for a user to share personal folders with other users or groups and define the access level for each user or group
  • Access to user address and other user information in the global directory via Scalix Web Access address book
  • Permissions-based public folders for emails, calendars and contacts. Ability to drag and drop items from your mailbox (email, contacts, calendar) to public folders
  • Users can freely interchange between Scalix Web Access and desktop clients such as Outlook without losing data or formatting of emails, calendars, contacts
  • Single-click sorting of messages by subject, sender, date/time
  • Sub-second mailbox-wide message searching which allows for searching of attachments and focused searches (such as searching only for messages that have attachments, that are marked as high importance, that were received within a certain date range, etc.)
  • Mouseover functionality for rapid browsing of appointments, contacts, and message previews. Right-click menus to view, modify or delete calendar items without having to open them or leave the inbox or folder in view
  • Ability for each user to tailor the interface to his/her preference (i.e. resizable and collapsible frames, hide/show part of the user interface)
  • Ability to send and receive emails in rich text format
  • Auto-completion while addressing messages
  • Auto-insertion of customizable signature when composing messages
  • Integrated spell-checker while composing messages or upon Send
  • Ability to set message importance and sensitivity ability to set for outgoing messages and view for received messages
  • Ability to manage one or multiple calendars from a single user interface
  • Ability to create and manage contacts and personal distribution lists
  • Rules wizard to create server-side rules for automated management of incoming email
  • Out-of-office assistant to automatically reply or forward messages. Interoperable with Outlook

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Last Updated Saturday, May 23 2015 @ 11:47 AM EDT

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