Here is some basic information on how FBA authentication is done with WebDAV. To provide some insight into how this works, you should look at the sample code of KB891748 and review it with the explanation below. Note that if you are going against Exchange 2007, you should reconsider using FBA authentication...

With any login issue, it’s important to know which authentication protocols are valid. You have to code to an authentication protocol which can be used. The authentication settings for OWA and WebDAV are tied together under Exchange 2000 and 2003. Because of this, developers run into issues with...

I was recently asked this question similar to this: How can we search on unmounted EDB files? Are there any API's that I can use to access the mails in unmounted EDB? There are two answers: “No” and “It’s a bad idea”. Further: There is no support for accessing unmounted...

Ahhh thats a big one... What is supported: • Non-recurring appointments • Contacts in Microsoft Outlook that you create or modify • Folders that you create in Outlook and in Exchange 2000 Server or Exchange Server 2003 • E-mail messages that you create or modify "All other tasks that use the WebDAV...

Using WebDAV to read BCC information on messages (even in the Drafts folder) will not work. The “urn:schemas:mailheader:bcc” will not return the BCC information using WebDAV - this is expected behavior. If you do a GET against the message to get the MIME, then you will also not get the BCC - this also...

Drag and Drop with Outlook is not supported by code. However there are some techniques which can provide an item drag/drop effect. The idea is to write the item to a temporary .msg file and then use OLE CF_HDROP for the drop. Before we begin let me make this clear: There is no specific information...

There is no supported way of changing OWA settings using WebDAV for Exchange 2007. Under Exchange 2000 and 2003, there were properties on the mailbox root which could be changed via code. However OWA 2007 is a much different animal. Under Exchange 2000 and 2003, there are properties which you could...