Exchange 2010 SP2 Exchange Web Services (EWS) 404 Not Found Issue

Question

Hi,

I'm trying to use EWS from a C# application in VS 2005 to add a contact to a users mailbox in Exchange 2010.  VS 2005 is running on Server 2008 R2 64-bit.  IT have configured Exchange impersonation for the account whose credentials I'm supplying.

 

I've created a Web Service reference to 'https://mail.<domain>.co.uk/ews/Services.wsdl'</domain> in my application so I know that I can see this end point.

I'm establishing a connection to Exchange using the following code:

	_Conn = new ExchangeServiceBinding();
        _Conn.RequestServerVersionValue = new RequestServerVersion();
        _Conn.RequestServerVersionValue.Version = ExchangeVersionType.Exchange2010_SP2;
        _Conn.Url = https://mail.<domain>.co.uk/ews/Services.asmx
	_Conn.Credentials = new NetworkCredential("<username>", "<password>", "<domain>"); 

I'm specifying the mailbox using the following code:

        _Conn.ExchangeImpersonation = new ExchangeImpersonationType();
        _Conn.ExchangeImpersonation.ConnectingSID = new ConnectingSIDType();
        _Conn.ExchangeImpersonation.ConnectingSID.ItemElementName = ItemChoiceType.PrimarySmtpAddress;
        _Conn.ExchangeImpersonation.ConnectingSID.Item  "[e-mail]";

I then create an instance of type ContactItemType called createItem and configure it with the details of the contact I want to add then try and add it to Exchange using the following code:

	// Set File Name
        createItem.FileAs = "fileName";
        createItem.FileAsMapping = FileAsMappingType.None;
        createItem.FileAsMappingSpecified = true;

        // Build request
        CreateItemType request = new CreateItemType();
        request.Items = new NonEmptyArrayOfAllItemsType();
        request.Items.Items = new ItemType[] { createItem };

        // Create Contact in Exchange by sending request
        CreateItemResponseType createItemResponse = _Conn.CreateItem(request);

It's at this point that I get the '404 Not Found' error.

I have a version of this code working against Exchange 2007.  The difference, which might account for the error, is in how I specify the mailbox.  The Exchange 2007 code reads:

	_Conn.ExchangeImpersonation = new ExchangeImpersonationType();
        _Conn.ExchangeImpersonation.ConnectingSID = new ConnectingSIDType();
        _Conn.ExchangeImpersonation.ConnectingSID.PrimarySmtpAddress = "[e-mail]";

Certainly if I specify a nonsense primary SMTP address I get the '404 Not Found' error but I'm happy with the address I'm specifying.

Likewise if I specify a nonsense Exchange EWS URL I get the '404 Not Found' error but hopefully I'm getting it right since I've used the same address I used when I set up the EWS web reference in VS 2005 except I'm specifying '.asmx' instead of '.wsdl'.

I hope that someone can help.

Regards,

Craig

Answer 1

Hello Craig,

The purpose of this forum is to support the Open Specifications documentation. You can read about the Microsoft Open Specifications program from http://www.microsoft.com/openspecifications/en/us/default.aspx
The library of Open Specification documents can be accessed from http://msdn.microsoft.com/en-us/library/dd208104(PROT.10).aspx. Your question may be more applicable to this forum http://social.technet.microsoft.com/Forums/da/exchangesvrdevelopment/threads

Regards,
Sreekanth Nadendla
Microsoft Windows Open Specifications