Is there an open source email client that will work with Exchange 2007?

Evolution, by way of evolution-mapi:

Package: evolution-mapi
Description: Evolution extension for MS Exchange 2007 servers
 A provider for Evolution that can connect to Exchange 2007 servers
 and also to Exchange 2003, 2000 and 5.5.

It is very beta though, so please report bugs!


Evolution Exchange Connector. Rats, not open source. My bad. Will try to find an open source one and post back. Actually, it is open source after all. Configuration to connect to Exchange is available.