Exchange integration/nndav revisited

Exchange integration/nndav revisited

[Steinar Bang]

Since MSCE-carrying Exchange maintainers seem to be more willing to
open webmail on Exchange servers than to open the IMAP integration, it
might be an idea to revisit august of last year's discussion on Gnus
Exchange integration: 
	http://comments.gmane.org/gmane.emacs.gnus.general/53652

Short summary: Exchange 2000 servers, and beyond, expose a WebDAV
interface when their webmail support is enabled.  Since this WebDAV
interface is what the ActiveX webmail component in IE uses, and this
is what Microsoft's own Exchange client for Mac OS X ("Entourage X")
uses, it is not likely that it will go away soon.  This WebDAV
interface is what Evolution and Kontakt uses to communicate with
Exchange servers, and it looks like it is possible to interface Gnus
this way as well.

Some links that aren't in the august discussion:

 "Access Your Exchange 2000 / 2003 Mailbox With WebDAV"; an example of
 making VBScript to access the mailbox using WebDAV:
	http://www.msexchange.org/articles/Access-Exchange-2000-2003-Mailbox-WebDAV.html
 "Eldav: Yet another WebDAV interface for Emacsen"; this mode uses an
 outside program called "nd" to do the actual WebDAV.  The august
 discussion thread talks about using cadaver for this, so I guess that
 means this approach isn't irrelevant...?
	http://www.gohome.org/eldav/

Exchange Web Services integration (Was: Exchange integration/nndav revisited)

[Steinar Bang]

Since the 2005 article this one is a follow up to, and its 2003 predecessor
	http://comments.gmane.org/gmane.emacs.gnus.general/53652
Exchange WebDAV has become obsolete.

Instead there is Exchange Web Services, a SOAP based API.

Of course this sucks compared to just using IMAP, that with the
exception of the Exchange 2007 badness, have worked well for me for many
years. 

But many Exchange administrators are strangely reluctant to enable IMAP
and SMTP, so that leaves the Exchange Web Services as a possible way to
talk to Exchange from a non-Outlook client.

Some links:

 "Exchange Developer Roadmap" (gives an overview of existing and future
 interfaces and what will happen to them)
	http://blogs.msdn.com/exchangedev/archive/2008/05/22/exchange-developer-roadmap.aspx

 "Exchange Web Services Reference"
	http://msdn.microsoft.com/en-us/library/bb204119(EXCHG.80).aspx

 Some emacs web services clients that may provide example code:
	http://edward.oconnor.cx/elisp/