Subscriptions with EWS and EAS don’t get notifications when read status is changed.

This is known behavior. If another activity happens which triggers a notification, then you would likely get a notification for the update on the read status change at that time.  Read receipt is the only ping that tells you ‘message has been read’.   Read state changes are pushed with sync, but don’t trigger a sync …

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EWS Streaming Notifications with Exchange 2013

Below are some pointers on EWS streaming events with Exchange 2013/Exchange Online.    The basics: Affinity in Exchange 2013/Wave 15 is handled the client application using cookies and headers.  Subscription code needs to gather information using AutoDiscover, and create batch list of mailboxes to subscribe to then and set appropriate headers for the initial subscription…

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About: Exchange Store Sinks

API Interface: COM interface implementation hosted in COM+. Business Logic: Store sink interfaces do not add or enhance business logic, see ExOLEDB  or CDO for Exchange (CDOEX). Language Support: All COM compatible languages including .NET. Direct Property Access: Item access performed by ExOLEDB or CDO for Exchange (CDOEX). Product Versions: Exchange 2000, 2003, and 2007.   Summary:…

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EWS Best Practices

If your a new developer to EWS or are looking at implementing best practices in development going forward, you should be aware of at least some of the common areas where developers have issues. There are a number of things which should be understood while writing EWS code and sometimes developers miss certain aspect of…

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EWS PUSH – What is the StatusFrequency for

The StatusFrequency value used in EWS Push notifications is often misunderstood.  So, I will try to provide some information on this setting which may help. The important thing to understand:  StatusFrequency is really not a “frequency” – it’s a maximum timeout value based upon the maximum number of retries – StatusFrequency is in essence the number…

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Exchange Protocol Documentation

Microsoft released preliminary protocol documentation for Exchange 2007 (as well as Microsoft Office 2007 and SharePoint Server) as part of Microsoft’s Interoperability Principles. The Exchange protocols are now publicly available on the Open Protocol Specifications section of MSDN in preliminary form for developers to review and provide feedback.  You can read more about the announcement…

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Exchange Protocol Documentation

Microsoft released preliminary protocol documentation for Exchange 2007 (as well as Microsoft Office 2007 and SharePoint Server) as part of Microsoft’s Interoperability Principles. The Exchange protocols are now publicly available on the Open Protocol Specifications section of MSDN in preliminary form for developers to review and provide feedback.  You can read more about the announcement…

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