Friday, November 15, 2013

Turning off the Reading / Preview Pane on all folders in OWA in Exchange 2013 and Exchange Online in EWS with Powershell

Exchange 2013 and Exchange Online has a cool new feature in OWA to let you control the Reading pane setting on all folders in your Mailbox in OWA eg. (in previous versions you had to manage it yourself per folder).

When you set this setting in OWA and check the "Apply to all folders" box, in your mailbox it sets a configuration setting called GlobalReadingPanePosition in the OWA.UserOptions FAI (Folder Associated Item) in the Non_IPM Root of your Mailbox. The following values control the position of the Reading Pane on all folders

0 - Hides the Reading Pane
1 - Shows the Reading Pane on the Rights (this is the default)
2 - Shows the Reading Pane at the bottom

To Access this FAI Item in EWS you use the UserConfiguration class which makes accessing the Roaming Dictionary structure where this particular value is held really easy. Eg the following script will turn the Reading pane off on all Folders in the mailbox its ran against. I've put a download of this script here the code itself looks like

  1. ## Get the Mailbox to Access from the 1st commandline argument  
  2.   
  3. $MailboxName = $args[0]  
  4.   
  5. ## Load Managed API dll    
  6. Add-Type -Path "C:\Program Files\Microsoft\Exchange\Web Services\2.0\Microsoft.Exchange.WebServices.dll"    
  7.     
  8. ## Set Exchange Version    
  9. $ExchangeVersion = [Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP2    
  10.     
  11. ## Create Exchange Service Object    
  12. $service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService($ExchangeVersion)    
  13.     
  14. ## Set Credentials to use two options are availible Option1 to use explict credentials or Option 2 use the Default (logged On) credentials    
  15.     
  16. #Credentials Option 1 using UPN for the windows Account    
  17. $psCred = Get-Credential    
  18. $creds = New-Object System.Net.NetworkCredential($psCred.UserName.ToString(),$psCred.GetNetworkCredential().password.ToString())    
  19. $service.Credentials = $creds        
  20.     
  21. #Credentials Option 2    
  22. #service.UseDefaultCredentials = $true    
  23.     
  24. ## Choose to ignore any SSL Warning issues caused by Self Signed Certificates    
  25.     
  26. ## Code From http://poshcode.org/624  
  27. ## Create a compilation environment  
  28. $Provider=New-Object Microsoft.CSharp.CSharpCodeProvider  
  29. $Compiler=$Provider.CreateCompiler()  
  30. $Params=New-Object System.CodeDom.Compiler.CompilerParameters  
  31. $Params.GenerateExecutable=$False  
  32. $Params.GenerateInMemory=$True  
  33. $Params.IncludeDebugInformation=$False  
  34. $Params.ReferencedAssemblies.Add("System.DLL") | Out-Null  
  35.   
  36. $TASource=@' 
  37.   namespace Local.ToolkitExtensions.Net.CertificatePolicy{ 
  38.     public class TrustAll : System.Net.ICertificatePolicy { 
  39.       public TrustAll() {  
  40.       } 
  41.       public bool CheckValidationResult(System.Net.ServicePoint sp, 
  42.         System.Security.Cryptography.X509Certificates.X509Certificate cert,  
  43.         System.Net.WebRequest req, int problem) { 
  44.         return true; 
  45.       } 
  46.     } 
  47.   } 
  48. '@   
  49. $TAResults=$Provider.CompileAssemblyFromSource($Params,$TASource)  
  50. $TAAssembly=$TAResults.CompiledAssembly  
  51.   
  52. ## We now create an instance of the TrustAll and attach it to the ServicePointManager  
  53. $TrustAll=$TAAssembly.CreateInstance("Local.ToolkitExtensions.Net.CertificatePolicy.TrustAll")  
  54. [System.Net.ServicePointManager]::CertificatePolicy=$TrustAll  
  55.   
  56. ## end code from http://poshcode.org/624  
  57.     
  58. ## Set the URL of the CAS (Client Access Server) to use two options are availbe to use Autodiscover to find the CAS URL or Hardcode the CAS to use    
  59.     
  60. #CAS URL Option 1 Autodiscover    
  61. $service.AutodiscoverUrl($MailboxName,{$true})    
  62. "Using CAS Server : " + $Service.url     
  63.      
  64. #CAS URL Option 2 Hardcoded    
  65.     
  66. #$uri=[system.URI] "https://casservername/ews/exchange.asmx"    
  67. #$service.Url = $uri      
  68.     
  69. ## Optional section for Exchange Impersonation    
  70.     
  71. #$service.ImpersonatedUserId = new-object Microsoft.Exchange.WebServices.Data.ImpersonatedUserId([Microsoft.Exchange.WebServices.Data.ConnectingIdType]::SmtpAddress, $MailboxName)   
  72.   
  73. $folderid= new-object Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Root,$MailboxName)       
  74. #Specify the Root folder where the FAI Item is    
  75. $UsrConfig = [Microsoft.Exchange.WebServices.Data.UserConfiguration]::Bind($service"OWA.UserOptions"$folderid, [Microsoft.Exchange.WebServices.Data.UserConfigurationProperties]::All)    
  76. if($UsrConfig.Dictionary.ContainsKey("GlobalReadingPanePosition")){    
  77.     $UsrConfig.Dictionary["GlobalReadingPanePosition"] = 0    
  78. }    
  79. else{    
  80.     $UsrConfig.Dictionary.Add("GlobalReadingPanePosition",0)    
  81. }  
  82. $UsrConfig.Update()    
  83. "Item updated"  


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