Microsoft Exchange Server 2007
This latest version of the Microsoft messaging and collaborative software product, was released at the end of 2006. Exchange's major features consist of electronic mail, shared calendars and tasks, and support for the mobile and web-based access to information, as well as supporting data storage. The major improvements over the previous 2003 version include voice mail integration, better search and support for web services, better filtering options, and a new outlook web access interface.
I would also add the following as major improvements :
- Protection via anti-spam, antivirus, compliance, clustering with data replication, improved security and encryption
- Removed the database maximum size limit. Database size is now limited by hardware capability and the window for backups and maintenance.
- Increased the maximum number of storage groups and mail databases per server, to 5 each for Standard Edition (from 1 each in Exchange 2003 Standard), and to 50 each for Enterprise Edition (from 4 groups and 20 databases in Exchange 2003 Enterprise).
Office website can found here.