Exchange dev blog

The official Microsoft blog for Exchange developers
  • Exchange dev blog

    Just Released – Exchange Server 2010 SP1 Beta SDKs, June 2010

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    We’re excited to announce that we have released updates to the Exchange 2010 SDKs for Microsoft Exchange Server 2010 Service Pack 1 (SP1). Exchange 2010 SP1 introduces many new programmability features that will help you create robust applications. Here...
  • Exchange dev blog

    Directory event log event 2914

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    When studying the event log over a steaming hot cup of coffee, have you ever seen the following directory event (2914)? Process w3wp.exe (UNKNOWN) (PID=15780). Deleted throttling policy was referenced. Id: 'Org: SomeOrg…/Configuration, Id: CN=ThrottlingPolicy...
  • Exchange dev blog

    Loading Properties for Multiple Items with One Call to Exchange Web Services

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    When you use the FindItems method or the FindAppointments method in Exchange Web Services (EWS), it’s important to realize that neither of these methods returns all properties for the items returned by the query. For example, FindItems will not return...
  • Exchange dev blog

    Directory event log event 2917

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    Have you ever seen event 2917 in your Client Access server’s event log? It might look something like this: Process w3wp.exe (PID=1234). A budget charge was encountered that exceeded the limit of '2.768900000' minutes. Budget Owner: 'SomeUser', Component...
  • Exchange dev blog

    Throttling Policies and Caches

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    So, you decide that you want to edit a throttling policy. In the Exchange Management Shell, you run Set-ThrottlingPolicy and set some odd parameter to a new value. Then you make your EWS/Outlook Web App/etc. call and notice that the results have not taken...
  • Exchange dev blog

    Throttling Policy Fallback Logic

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    The throttling framework is intended to protect Exchange resources, so if it is going to "fail", it needs to do so in a safe and predictable way. Let's say that Ken Malcolmson is assigned to non-default throttling policy XYZ. Unfortunately, an Active...
  • Exchange dev blog

    Throttling Policies and the EWSFindCountLimit

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    One of my favorite Exchange Web Services (EWS) methods is FindItem , primarily because it was the first Web method I wrote when I joined the EWS team long, long ago. Since then, it has undergone lots of optimizations, feature changes, and so on, to make...
  • Exchange dev blog

    Throttling Policies and CPUStartPercent

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    Throttling policies have this funny parameter called CPUStartPercent . This parameter defines the starting CPU use percentage at which Exchange will begin delaying inbound requests. EWS, Exchange Active Sync, POP and IMAP honor the CPU Start Percent value...
  • Exchange dev blog

    Budget Snapshots in the IIS Logs

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    A few components (Outlook Web App, EAS, and EWS) log budget snapshot information to the IIS logs. EWS, notably, includes both a start and an end snapshot. Here is an example of an IIS log entry for EWS (lines are broken up to make it more readable): 2010...
  • Exchange dev blog

    Exchange Server 2010 SDKs March 2010 Update

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    We’ve just posted updates for many of the Exchange 2010 SDKs, and even added a new one! ...
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