License question

[Erwin Rol]

On Fri, 2006-05-05 at 09:49 -0400, Dimi Paun wrote:
> On Fri, May 5, 2006 9:04 am, Jos Vos wrote:
> > It's difficult to judge what package "the leading" groupware will be
> > (if any), but until now I'd put my coins on OGo.  I have only globally
> > compared all the options (including suites like Horde etc.), but all
> > options are either a complex mess (and extremely difficult to package)
> > or they lack functionality or a big community (or both).
> 
> Speaking of Exchange alternatives, how about things like:
>   * http://zimbra.com/
>   * http://www.egroupware.org/
>   * http://www.citadel.org/
>   * http://www.exchange4linux.org/
>   * http://hula-project.org/
> 
> In particular Zimbra, it looks very good. Do people have any
> experience with any of these?

Zimbra also has most of its interesting features in the closed source
version only http://zimbra.com/products/product_editions.html . 

Like Jos mentioned most groupwares are an interesting mix of Free and
closed source things, where the "nice" features are in the closed source
version. 

- Erwin