Remove all Emails from a specific folder using Powershell script

Remove All Emails from a specific folder from user Mailbox, This script uses EWS so make sure you install Exchange web service 2.0 before using this script.

Copy the code and put that in a ps1 file, make sure to change the required attribute in script header.

########################################
#script Name = Delete_ALL_MSG_EWS-specific-folder.ps1
#Author = Sunil Chauhan
#Email= Sunilkms@gmail.com
#Ver = 1.0
# Deleting All Emails From a Specific Folder from a Mailbox.
# this script usese EWS to find and delete all the items from the user's defined folder.
#########################################
 
$user = "admin@LetsExchange.in"
$pass = "Password"
$Folder = "\Deleted Items" #replace with the folder Name
 
$toDate= get-date -Format MM/dd/yyyy
 
#from date is hard coded in line no 87 to 01/01/2014 you can change it as per your search criteria.
 
#Web Service Path
$EWSServicePath = "C:\Program Files\Microsoft\Exchange\Web Services\2.0\Microsoft.Exchange.WebServices.dll"
 
#Importing WebService DLL
Import-Module $EWSServicePath
 
#Creating Service Object for O365
$Service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService
 
#for exchange 10 uncomment the below lines
#$ExchVer = [Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP1
#$Service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService($exchver)
 
 
$service.Credentials = New-Object Microsoft.Exchange.WebServices.Data.WebCredentials -ArgumentList $user, $pass
 
#Setting up EWS URL
$EWSurl = "https://outlook.office365.com/EWS/Exchange.asmx"
$Service.URL = $EWSurl
 
# Defining Itemview depth
$ItemView = New-Object Microsoft.Exchange.WebServices.Data.ItemView(10000)
 
$MailboxRootid = new-object  Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::MsgFolderRoot,$user)
$MailboxRoot = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($service,$MailboxRootid)
 
# Get Folder ID from Path
Function GetFolder()
                {
                                # Return a reference to a folder specified by path
 
                                $RootFolder, $FolderPath = $args[0];
                                $Folder = $RootFolder;
                                if ($FolderPath -ne '\')
                                {
                                                $PathElements = $FolderPath -split '\\';
 
                                                For ($i=0; $i -lt $PathElements.Count; $i++)
 
                                                {
                                                                if ($PathElements[$i])
                                                                {
                                                                                $View = New-Object  Microsoft.Exchange.WebServices.Data.FolderView(2,0);
                                                                                $View.Traversal = [Microsoft.Exchange.WebServices.Data.FolderTraversal]::Deep;
                                                                                $View.PropertySet = [Microsoft.Exchange.WebServices.Data.BasePropertySet]::IdOnly;
                                                                               $SearchFilter = New-Object Microsoft.Exchange.WebServices.Data.SearchFilter+IsEqualTo([Microsoft.Exchange.WebServices.Data.FolderSchema]::DisplayName, $PathElements[$i]);
               
                                                                                $FolderResults = $Folder.FindFolders($SearchFilter, $View);
                                                                               
                                                                                if ($FolderResults.TotalCount -ne 1)
                                                                                {
                                                                                                # We have either none or more than one folder returned... Either way, we can't continue
                                                                                                $Folder = $null;
                                                                                                Write-Host "Failed to find " $PathElements[$i];
                                                                                                Write-Host "Requested folder path: " $FolderPath;
                                                                                                break;
                                                                                }
               
                                $Folder = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($service, $FolderResults.Folders[0].Id)
                                                                }
                                                }
                                }
               
                                $Folder;
                }
 
try {
                $FolderObject = GetFolder ($MailboxRoot, $folder)
                #Date from and To
    #$findItemResults = $FolderObject.FindItems("System.Message.DateReceived:01/01/2014..$todate",$ItemView)
               
                $findItemResults = $FolderObject.FindItems($ItemView)
        foreach ($item in $findItemResults.Items) {
                try {
                                                                                #Comment Below out to not delete
                    [void]$item.Delete([Microsoft.Exchange.WebServices.Data.DeleteMode]::HardDelete)
                    $Deleted ++
 
                                                                                #Uncomment below to list before deleting
                                                                                #Write-host $item.DateTimeReceived
                } catch {
                    Write-warning "Unable to delete item, $($item.subject).  $($Error[0].Exception.Message)"
                }
            }
                                               
                                if ($Deleted -gt 0) { Write-host "$Deleted mail items deleted from the Inbox." }
                               
} catch {
 
    Write-warning "Could not connect to Inbox.$($_.exception.message)"
 
                }