www.berlinux.com.mx

Logotipo: 

Zimbra Collaboration Open Source Edition provides administrators and their end users innovative features that solve the challenges faced by organizations using today's legacy communications infrastructure.
Key advantages include:

- compatibility with Windows, Mac, and Linux desktop environments;
- better scalability and ease of maintenance; and
- flexibility to integrate other applications as web services in our AJAX web client.

Referencia: https://www.zimbra.com/open-source