Exchange WebPart for SharePoint 2010 and 2007 (MOSS 2007 and WSS 3.0)
New version available for SharePoint 2007
This component is compatible with Exchange 2007 SP1 and Exchange 2010.
I use Exchange Web Service API to communicate with the exchange server.
With the webpart, you can see how many unread emails, see emails preview and you can mark as read an email.
Click on this link to have on overview => Features
To install and configure this WebPart => Documentation
To download the SharePoint 2010 package => Here
To download the SharePoint 2007 package => Here