Getting a 401 with EWS? Read this before opening a support case!

If your getting a 401 with an API going against Exchange or basically anything then the issue is most likely with your credentials and NOT your code. Instead of jumping to the step of opening a support case do the following: Recheck your login information. Check the user id used, password and domain information. Logins…

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EWS ServerBusyException – The server is too busy – for you

So… you got an ServerBusyException, eh? You might have seen it thrown as this in your code: Microsoft.Exchange.WebServices.Data.ServerBusyException: The server cannot service this request right now. Try again later. The server is not overloaded overall and the call is reaching EWS and EWS is responding with a throttling error. When you see ServerBusyException in the…

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Howto: Set the organizer of a meeting on the calendar of an attendee using EWS.

I would like to say that this is something which is easily possible – however, I cannot. Setting the organizer directly in code is not supported. Historically, having the organizer over-writable has caused some pretty bad situations for customers. When a meeting is created, the organizer property is automatically hard-stamped and cannot be specified during meeting…

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Howto: WebDAV PROPPATCH using VBScript

‘The example below demonstrates how to do a WebDAV PROPPATCH.’The sample changes the subject of one message in the inbox. ‘ Note: You cannot specify a condition with a PROPPATCH; ‘ Note: Understand how the Depth header affects patching and you should understand how its used          before using any other setting than 0. dim sHREFdim…

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How to access or change OWA settings for Exchange 2007/2003/2000?

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 get at with WebDAV…

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