znaleźć obiekt po mailu

if($args.count -ne 1) {
    echo podaj parametr
    return
}

$searcher = New-Object DirectoryServices.DirectorySearcher([ADSI]"")

$searcher.filter = "(|(objectClass=user)(objectClass=group))"
$searcher.searchscope="Subtree"
$searcher.PropertiesToLoad.add("proxyaddresses")
$searcher.PropertiesToLoad.add("mailnickname")
$searcher.PropertiesToLoad.add("mail")
$searcher.PropertiesToLoad.add("samaccountname")
$results=$searcher.findall()

foreach($r in $results) {
    $prop=$r.properties
    if($prop.proxyaddresses) {
        $pa= ([string]($prop.proxyaddresses)).tolower()
        if($pa.contains($args[0]) ) {
            echo "$($prop.samaccountname) -> $($prop.proxyaddresses)"
        }
    }
    if($prop.mail) {
        $pa= ([string]($prop.mail)).tolower()
        if($pa.contains($args[0]) ) {
            echo "$($prop.samaccountname) -> $($prop.mail)"
        }
    }
    if($prop.mailnickname) {
        $pa= ([string]($prop.mailnickname)).tolower()
        if($pa.contains($args[0]) ) {
            echo "$($prop.samaccountname) -> $($prop.mailnickname)"
        }
    }
}
echo "done."