Without a doubt, this is one of those trillian dollar questions that most people simply don’t have the answer to just yet.

This week Linux.com is taking an in-depth look at three of the highest-profile open source-based challengers to Microsoft’s dominant Exchange that run on Linux. Over the next few days we’ll review Scalix, Open-Xchange, and Zimbra. We’ll also interview Scalix and Zimbra executives about how their marketing efforts are doing. This series of articles is a result of many reader requests for an in-depth look at ways to remove Microsoft Exchange from their server rooms while still providing Exchange-like functionality to executives and administrative staff who depend on those features to function…. Source: NewsForge