Export LDAP information to CSV with powershell

Hello,

I'm trying to create a little script to export some information of my ldap to a CSV file.

I'm using this little script :

$strFilter = "((objectCategory=User))"

$objDomain = New-Object System.DirectoryServices.DirectoryEntry("LDAP://OU=Utilisateurs,DC=myldap")
$objSearcher = New-Object System.DirectoryServices.DirectorySearcher
$objSearcher.SearchRoot = $objDomain
$objSearcher.PageSize = 10
$objSearcher.Filter = $strFilter
$objSearcher.SearchScope = "Subtree"

$colProplist = "name","postofficebox"
foreach ($i in $colPropList){$objSearcher.PropertiesToLoad.Add($i)}

$colResults = $objSearcher.FindAll()

$myList = @()
foreach ($objResult in $colResults) {
    $objItem = $objResult.Properties
    $myUSer = "" | Select-Object Name, PostOfficeBox
    $myUser.Name = $objResult.Properties["name"]
    $myUser.PostOfficeBox = $objResult.Properties["postofficebox"]
    $myList += $myUser
}
    

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but when I export $mylist to csv, I get only the object type and not the value as you can see :

#TYPE Selected.System.String
"Name","PostOfficeBox"
"System.DirectoryServices.ResultPropertyValueCollection","System.DirectoryServices.ResultPropertyValueCollection"

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I running it for a quite long time and I can get out where I'm wrong.
Any help should be very welcome.