Powershell script to delete email items and subfolders under a specific folder from mailbox using EWS managed API in Office 365 or Exchange.

If you want to quickly Empty a specific folder including the subfolders or just the items from a specific folder then below script should be able to fulfill your requirement.

Note: if you are looking for a script to cleaning up of Deletions or Purges folder then please read my post here on the same.

Below are the perquisites before you can run this script to generate the report.
  • Admin account should have application impersonation rights, you can follow this msdn post to setup the permissions. 
  • Install EWS managed API on system where you plan to run the script from, if API is not installed, download the same from here
Note: Please install the latest version of EWS API, version 2.2 is currently being used, please edit the same in the script if you wish to run the same with the old version.

This Script can be useful to Quickly Empty a specific Folder in user mailbox, Can also delete subfolders under a specific folder.

Usage Example:

Empty Junk Email Folder From user Mailbox "Testuser@xzy.com"
>.\EmptyFolder-Ews.ps1 -Mailbox "Testuser@xzy.com" -folder "Junk Email" -admin "admin@xyz.com" -pass "adminpass"

Empty Junk Email Folder as well as folders under Junk Email From user Mailbox "Testuser@xzy.com"

>.\EmptyFolder-Ews.ps1 -Mailbox "Testuser@xzy.com" -folder "Junk Email" -DeleteSubFolders $true -admin "admin@xyz.com" -pass "adminpass"

Note: this script is currently set to take soft delete action if you wish to permanently delete items please change the same in the script.

Download from GitHub
#===================================================================================================
#Author = Sunil Chauhan
#Email= Sunilkms@gmail.com
#Blogs=Sunil.chauhan.blogspot.com
#=====================================================================================================
# this Script can be useful to Quickly Empty a specific Folder in user mailbox
# can also delete subfolder under a specific folder.
#Usage Example:
#Empty Junk Email Folder From user Mailbox "Testuser@xzy.com"
#>.\EmptyFolder-Ews.ps1 -Mailbox "Testuser@xzy.com" -folder "Junk Email" -admin "admin@xyz.com" -pass "adminpass"

#Empty Junk Email Folder as well as folders under Junk Email From user Mailbox "Testuser@xzy.com"
#>.\EmptyFolder-Ews.ps1 -Mailbox "Testuser@xzy.com" -folder "Junk Email" -DeleteSubFolders $true -admin "admin@xyz.com" -pass "adminpass"
#=====================================================================================================

param (
  $Mailbox
  $folder
  $DeleteSubFolders
  $admin
  $pass
      )

#Impersonate Admin Account details
$AccountWithImpersonationRights=$admin
$password=$pass

#folder which you wants to empty from user mailbox
$FolderToEmpty=$folder

#EWS url for your orgnization
$uri=[system.URI] "https://outlook.office365.com/ews/exchange.asmx"
#define EWS Dll file Path
$dllpath = "C:\Program Files\Microsoft\Exchange\Web Services\2.0\Microsoft.Exchange.WebServices.dll"
Import-Module $dllpath
#-------------------------------------------------------------------------------------
## Set Exchange Version
$ExchangeVersion = [Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP2
$service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService($ExchangeVersion)
$service.Credentials = New-Object Microsoft.Exchange.WebServices.Data.WebCredentials -ArgumentList `
$AccountWithImpersonationRights, $password
$service.url = $uri

$service.ImpersonatedUserId = New-Object Microsoft.Exchange.WebServices.Data.ImpersonatedUserId `
([Microsoft.Exchange.WebServices.Data.ConnectingIdType]::SMTPAddress,$Mailbox);

#Connect to the Inbox
$MailboxRootid= new-object Microsoft.Exchange.WebServices.Data.FolderId `
([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::MsgFolderRoot,$Mailbox)
$MailboxRoot=[Microsoft.Exchange.WebServices.Data.Folder]::Bind($service,$MailboxRootid)

#Getting Folders in the Mailbox
# you can change to folder view if there are more them 100 folder in the mailbox
$FolderList = new-object Microsoft.Exchange.WebServices.Data.FolderView(100)
$FolderList.Traversal = [Microsoft.Exchange.WebServices.Data.FolderTraversal]::Deep
$findFolderResults = $MailboxRoot.FindFolders($FolderList)

#identifying Source Folder
$FoldertoemptyID=$findFolderResults | ? {$_.DisplayName -match $Foldertoempty}

If ($FoldertoemptyID.TotalCount -eq 0)
  {
 Write-host "There were no email Found in the folder:" $FoldertoemptyID.DisplayName
  }
else 
  {
 Write-host "Item will be deleted from folder:" $FoldertoemptyID.DisplayName
 Write-host "No of Items in Folder:"$FoldertoEmptyID.TotalCount
 Read-host "Hit enter to Remove all the items..."
 $FoldertoemptyID.Empty([Microsoft.Exchange.WebServices.Data.DeleteMode]::SoftDelete,$False)
 #$FoldertoemptyID.Empty([Microsoft.Exchange.WebServices.Data.DeleteMode]::HardDelete,$True)
    "Done"
  }  
if($deleteSubFolders)
   {
    ""
    Write-host "All the subfolder and there item will be pruged under Folder:"$FoldertoemptyID.DisplayName -f yellow
    Read-host "Hit enter to Remove all the items..."
    $FoldertoemptyID.Empty([Microsoft.Exchange.WebServices.Data.DeleteMode]::SoftDelete,$True)
    #$FoldertoemptyID.Empty([Microsoft.Exchange.WebServices.Data.DeleteMode]::HardDelete,$True)
 "Done"
   }
 

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