Exchange 2010 OWA – Remove Cached Email Recipients/Auto Complete Entries

If you have any Active Directory users that have been deleted out but the addresses still show up in OWA or if you changed somebody’s user/email attributes and emails bounce back as undeliverable, this article is for you. I found this info here, the entries are stored in the user’s mailbox so the you can only delete them by doing one of the following:

  1. Delete an entry from the list using OWA
    1. Login to mailbox via OWA
    2. Create a new meeting request (Has to be a meeting request only!)
    3. Begin typing the entry you want to delete until you see it in the Auto Complete list
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Exchange 2010 OWA – Can’t Delete Messages

Out of nowhere today I rebooted my Exchange server (that has been up and running for several years without problems) then users could no longer delete their messages – they would just receive an unfriendly message stating that “An unexpected error occurred and your request could not be handled”. The event log showed the following error every couple of seconds:

Event 3, System.ServiceModel

WebHost failed to process a request.
 Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/20974680
 Exception: System.ServiceModel.ServiceActivationException: The service '/EWS/Exchange.asmx' cannot be activated due to an exception during compilation.  The exception message is: The type initializer for 'Microsoft.Exchange.Services.Wcf.MessageInspectorManager' threw an exception.. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Exchange.Services.Wcf.MessageInspectorManager' threw an exception. ---> System.InvalidOperationException: Unable to generate a temporary class (result=1).
 Continue reading "Exchange 2010 OWA – Can’t Delete Messages"