SMITIPS, that accusation is patently FALSE. Zimbra, which was owned by Yahoo, and is currently owned by VMware, is NOT harvesting emails. Not only is that silly, but you have absolutely no technical evidence to support such a strong statement.

Yes, the Zimbra Desktop software is not fantastic. However, this page is not for Zimbra Desktop, but Zimbra Collaboration Suite, the actual server, which I and many others have been using very successfully for years, and would never give up. It's simply fantastic.

Zimbra has a fantastic reputation in the industry. Not only does Yahoo continue to use Zimbra, but many universities, enterprises (i.e. comcast), and parts of US government use Zimbra. It has a very active open source community behind it as well.

Quite simply the best collaboration suite I've ever set up, administered, and used as an end user. The openness of Zimbra really makes it shine beyond the already *amazing* set of built-in functionality. It works wonderfully with iCal (subscribe/publish), WebDAV for "briefcase," plus a TON of other killer features, including an iPhone-optimized interface for mobile devices.

It not only acts as a very cost-effective "replacement" for Outlook, it bests it in every way. I have users using the native AJAX interface, users attached via IMAP using Outlook, Thunderbird, and Apple Mail and MobilMail (iPhone), even a few using the chat functions via Jabber in iChat. It all just works, and works *wonderfully.*

Top notch software. The Open Source version is great and FREE (that's what we use), and the Network (paid) edition is stellar, and very inexpensive.