Powershell:使用EWS搜索收件箱中没有的电子邮件

$service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService
$service.Credentials = New-Object System.Net.NetworkCredential("username", "password")
$service.Url = "https://exchangeserver.com/EWS/Exchange.asmx"

$folderId = New-Object Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Inbox)
$view = New-Object Microsoft.Exchange.WebServices.Data.ItemView(10)
$searchFilter = New-Object Microsoft.Exchange.WebServices.Data.SearchFilter+IsEqualTo([Microsoft.Exchange.WebServices.Data.EmailMessageSchema]::IsRead, $false)
$findResults = $service.FindItems($folderId, $searchFilter, $view)

foreach ($item in $findResults.Items) {
    Write-Host "Subject: " $item.Subject
    Write-Host "Sender: " $item.From.Name
    Write-Host "Received Time: " $item.DateTimeReceived
    Write-Host ""
}