Exchange dev blog

The official Microsoft blog for Exchange developers

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  • Blog Post: Provisioning, Policies, Remote Wipe, and ABQ in Exchange ActiveSync

    This post is part of an ongoing series that covers Microsoft Exchange ActiveSync for developers. Microsoft Exchange ActiveSync policies are the primary tool by which IT administrators can manage devices that connect to Microsoft Exchange mailboxes. Administrators can create policy settings to manage...
  • Blog Post: Working with meeting responses in Exchange ActiveSync

    This post is part of an ongoing series that covers Microsoft Exchange ActiveSync for developers. This post applies to Exchange ActiveSync protocol version 14.1. Where applicable, differences between protocol versions are noted. The ability to respond to meeting requests is an important aspect of collaboration...
  • Blog Post: Working with meeting requests in Exchange ActiveSync

    This post is part of an ongoing series that covers Microsoft Exchange ActiveSync for developers.   In this post, we are using Exchange ActiveSync protocol version 14.1. Where applicable, we note differences between protocol versions. Meeting requests are important for information workers who use...
  • Blog Post: Get Into Programming with Exchange Online as part of Office 365

    Microsoft Exchange Online as part of Microsoft Office 365 provides many of the same app-development capabilities that are available for Microsoft Exchange Server running on-site. The Exchange Developer Documentation team is pleased to announce the release of a new Exchange Online Developer Center page...
  • Blog Post: Now Available – Exchange Server 2010 SP1 SDKs, October 2010

    The Exchange Developer Documentation Team is happy to announce the October 2010 release of the Exchange Server 2010 Service Pack 1 (SP1) SDKs. If you’ve been keeping up with our SDK releases, then you know that we already released a lot of new information about Exchange 2010 SP1 back in June. The updates...
  • Blog Post: Directory event log event 2914

    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-DefaultMailboxPlan \0ADEL :4d73d344-d66f...
  • Blog Post: Directory event log event 2917

    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: 'EWS, CostType: 'CAS'. Sounds scary, doesn’t it...
  • Blog Post: Throttling Policies and Caches

    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 effect. Bummer! Slightly miffed, you open up...
  • Blog Post: Throttling Policy Fallback Logic

    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 Directory elf climbed into your domain controller...
  • Blog Post: Throttling Policies and the EWSFindCountLimit

    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 it what it is today. One of the Exchange 2010 changes...
  • Blog Post: Throttling Policies and CPUStartPercent

    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 in Microsoft Exchange Server 2010. Three (no...
  • Blog Post: Budget Snapshots in the IIS Logs

    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): 2010-03-09 15:15:12 XX.XXX.XX.X POST /ews/Exchange...
  • Blog Post: Exchange Server 2010 SDKs March 2010 Update

    I’m pleased to announce that we’ve just posted updates for many of the Exchange 2010 SDKs, and even added a new one! When the SDK team isn’t publishing those massive Exchange Server protocol documents, we spend our time updating the SDKs, and this March we have a great pre-spring bunch of them. Be sure...
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