http://blogs.msdn.com/mstehle/archive/2007/07/30/outbox-configuring-and-using-exchange-web-services-impersonation-in-exchange-2007.aspxHere is the information on setting up and using Exchange Web Services impersonation in Exchange 2007. Notice that it is a two part process, it is not just setting permissions on the target account, the service account also needs permissions on the Clienten-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/mstehle/archive/2007/07/30/outbox-configuring-and-using-exchange-web-services-impersonation-in-exchange-2007.aspx#4258702Mon, 06 Aug 2007 16:25:11 GMT91d46819-8472-40ad-a661-2c78acb4018c:4258702subject: exchange<p>Easy Free Way To Remove Duplicate Contacts From Microsoft Outlook Q&amp;amp;A: Exchange 2003 backup and recovery</p> http://blogs.msdn.com/mstehle/archive/2007/07/30/outbox-configuring-and-using-exchange-web-services-impersonation-in-exchange-2007.aspx#4295135Wed, 08 Aug 2007 19:41:06 GMT91d46819-8472-40ad-a661-2c78acb4018c:4295135Michael.Mainer<p>Thanks for creating an auto-generated proxy example for using Exchange Impersonation. I need to put that in my documentation. For readers of this post, also note that in addition to the primary SMTP address, a SID or UPN can be used to identify the user to impersonate.</p>http://blogs.msdn.com/mstehle/archive/2007/07/30/outbox-configuring-and-using-exchange-web-services-impersonation-in-exchange-2007.aspx#7134719Thu, 17 Jan 2008 00:05:26 GMT91d46819-8472-40ad-a661-2c78acb4018c:7134719mstehle: The CDOs and CDONTS of Messaging Development<p>The following KB article was just published based on a case I worked and bug that I filed against Exchange</p> http://blogs.msdn.com/mstehle/archive/2007/07/30/outbox-configuring-and-using-exchange-web-services-impersonation-in-exchange-2007.aspx#8974402Fri, 03 Oct 2008 00:02:41 GMT91d46819-8472-40ad-a661-2c78acb4018c:8974402Dan's WebDAV 101<p>I've put together a list of articles which cover common questions on Exchange Web Services (EWS). These</p>