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  • Blog Post: WebDAV can expose private meetings/appointments to users who should not see them.

    This is quite frequently asked and with surprise & worries mixed together… Why WebDAV is able to see my Private meetings/appointments? Isn’t this a security breach? How can I get it fixed? The answer is very simple, not this is not a bug. This is how it should work and then comes a even bigger surprise...
  • Blog Post: Exchange Web Services 101 : Let’s get started!

    Want to learn Exchange Web Service but not sure how and from where? Here are the few articles that I share very often with partners and customers who want to learn more about Exchange Web Services. Undoubtedly there is so much information out there and that’s too in such a short span of time. You better...
  • Blog Post: HOWTO: EWS: Get OOF State for Self or any user in your organization

    First thing first, this is just for demonstration purpose and might *not* be a supported solution by Microsoft. The setting we are reading from are hidden messages and not documented anywhere. I had to reverse engineer it for demonstration purpose. Objective : To get OOF State of any user in your organization...
  • Blog Post: Attachments go crazy and loose their positions when item is touched by Exchange Web Services

    My fellow colleague had this customer who was using Exchange Web Services to update body of an appointment item. He created a new appointment from Outlook with some body text, attachments in the body to the position where he wanted, subject & location. Appointment was saved as it should and life...
  • Blog Post: BUG: HasAttachments property is false on meeting occurrence with attachment

    I thought it was just the last month full of bugs and fixes. This month also started with a Exchange Web Services bug.. or better Exchange Bug as Exchange Web Service is just a victim :( If you add an attachment to a single occurrence of a recurring CalendarItem, and then call GetItem with AllProperties...
  • Blog Post: HOWTO: EWS: Update IsRead Flag for items using Exchange Web Services

    First thing first, you cannot use Exchange Web Services (as of now) to update the IsRead flag for items other than MessageType. MessageType has IsRead property in place to update the MAPI property PR_MESSAGE_FLAGS. Product group is aware of this limitation and very soon we should see an fix for this...
  • Blog Post: HOWTO: EWS: Get LastModifiedTime for Items

    So wondering where is LastModifiedTime? Exchange Web Services does not seem to give you the hint when the item was last modified. This property is not available in ItemType and expected to be available only after Exchange 2007 SP1. You can get the LastModifiedTime with the help of ExtendedProperty...
  • Blog Post: HOWTO: EWS: Use GetAttachment to download attachments off Mail/Appointment

    I have fallen for exchange web services. There are endless possibilities with exchange web services, and product group is still working to make it even better. Today I have created a neat sample to download attachments off Exchange Server Sample: DownloadAttachments Input Params: itemID , folder...
  • Blog Post: HOWTO: GetFolder, FindItem, Restriction, GetItem

    This is an attempt to extend my previous code sample Getting into a folder by path using EWS With this code sample I have demonstrated HOWTO find items under a folder. I have used Restriction to list down all the "IPM.Note" items falling under a specified date/time span. class EWS_SAMPLE ...
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