Talk to Exchange 2003 from Java

Question

What choices might I have for talking to an Exchange 2003 server from a Java application? I've heard a few references to projects that offer some .NET services to Java. I think I've also heard something about Exchange 2007 exposing web services, but I'm not sure if that's available in 2003.

Has anyone done this? Any suggestions?

Edit: by "talk to" I don't mean just getting messages, which I could do via IMAP...I mean accessing things that are more Exchange-specific, like contacts.

Answer 1

You can use WebDAV to access Exchange Server 2003:
http://msdn.microsoft.com/en-us/library/aa486282(EXCHG.65).aspx

This MSDN article demonstates how to manipulate the contacts using WebDAV:
http://support.microsoft.com/kb/296126
(Example code is written in VB, but it should give you an idea on how to do it.)