Using the AllItems Search folder from Outlook 2010 on Exchange 2010 with Powershell and the EWS Managed API

Search folders in Exchange make searching for items in multiple folders a little more easier and/or allows you to group and find email with certain properties easier eg things like Unread email, Flagged for followup etc. Outlook 2010 makes use of these features for To-Do list etc. One useful search folder that gets created by Outlook 2010 when its used against a Exchange 2010 server is the AllItems search folder. eg this one




This is a search folder that gets created in the NON_IPM_Subtree folder and essentially allows you to do a generic search of all the folders within a Mailbox. This can be useful in a powershell script if you do need to enumerate every item within a mailbox to use the Allitems search folder you first need to do a search for this search folder in the Mailbox Root and then you can use some normal findItems enumeration code.

To filter a findfolders operation to only return search folders you can use the PR_Folder_Type extended property if this property is set to 2 then you know the folder is a search folder

$PR_FOLDER_TYPE = new-object Microsoft.Exchange.WebServices.Data.ExtendedPropertyDefinition(13825,[Microsoft.Exchange.WebServices.Data.MapiPropertyType]::Integer);


The following sample script shows how to return items that where received in January 2011 in all folders within a mailbox using the AllItems search folder with an AQS query. I've put a download of the code here the script itself looks like

$AqsString = "System.Message.DateReceived:01/01/2011..01/31/2011"
$MailboxName = "domain.com"

$dllpath = "C:\Program Files\Microsoft\Exchange\Web Services\1.1\Microsoft.Exchange.WebServices.dll"
[void][Reflection.Assembly]::LoadFile($dllpath)
$service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService([Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP1)
$service.Credentials = New-Object System.Net.NetworkCredential("user@domain.com","passwod")

$service.AutodiscoverUrl($MailboxName,{$true})
$PR_FOLDER_TYPE = new-object Microsoft.Exchange.WebServices.Data.ExtendedPropertyDefinition(13825,[Microsoft.Exchange.WebServices.Data.MapiPropertyType]::Integer);

"Checking : " + $MailboxName
$folderidcnt = new-object Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Root,$MailboxName)
$fvFolderView = New-Object Microsoft.Exchange.WebServices.Data.FolderView(1000)
$fvFolderView.Traversal = [Microsoft.Exchange.WebServices.Data.FolderTraversal]::Shallow;
$sf1 = new-object Microsoft.Exchange.WebServices.Data.SearchFilter+IsEqualTo($PR_FOLDER_TYPE,"2")
$sf2 = new-object Microsoft.Exchange.WebServices.Data.SearchFilter+IsEqualTo([Microsoft.Exchange.WebServices.Data.FolderSchema]::DisplayName,"allitems")
$sfSearchFilterCol = new-object Microsoft.Exchange.WebServices.Data.SearchFilter+SearchFilterCollection([Microsoft.Exchange.WebServices.Data.LogicalOperator]::And)
$sfSearchFilterCol.Add($sf1)
$sfSearchFilterCol.Add($sf2)
$fiResult = $Service.FindFolders($folderidcnt,$sfSearchFilterCol,$fvFolderView)
$fiItems = $nulll
$ItemView = New-Object Microsoft.Exchange.WebServices.Data.ItemView(1000)
if($fiResult.Folders.Count -gt 0){
$fiResult.Folders[0].DisplayName
do{
$fiItems = $fiResult.Folders[0].findItems($AqsString,$ItemView)
$ItemView.offset += $fiItems .Items.Count
foreach($Item in $fiItems.Items){
$Item.Subject
}
}while($fiItems .MoreAvailable -eq $true)
}