The ZEG (Zero Effort Groupware) edition of SOGo is intended to provide a complete out-of-the-box testing environment of SOGo, the Open Source messaging and calendaring software.
Note: My rating only concerns the native Microsoft Outlook compatibility support (aka OPENCHANGE) which is just horrifying. Sogo however is a great piece of software!!! For anyone who's looking for native MAPI support, this ZEG is just a very limited tech-preview. It can't be regarded as a an exchange replacement at all (not even close it). Unfortunately the underlying OPENCHANGE software has no more active development and seems to be dead. So I guess you're better off with alternative solutions.
We' ve setup sogo for 10 customers so far. It works perfect. Thanks!
thank you sogo-zeg