On 2012-06-03 8:29 AM, Thomas Bruederli thomas@roundcube.net wrote:
For calendar (and others) sharing you should have a look at the Kolab Groupware (http://kolab.org). It's free and open source and allows very fine-grained sharing based on ACL. And that includes sharing of email folders and address books as well. However, it's not just a client software such as Roundcube but an entire server suite. But it uses Roundcube for web-based access.
We are getting ready to roll out SOGo here in our office. The new 2.0 is at rc status now, and will include Samba4 for a complete Active Directory Server capability. We won't be using that until Samba4 is released and most/all of the nasty bugs worked out, but we will definitely never be upgrading our Windows Servers (to another Windows version) again... :)
Also, there is a major announcement pending from SOGo and another popular open source project that will definitely be of interest to many roundcube users... I won't spoil it for them here, but if you talk to anyone from SOGo, be sure to ask about it...