Not getting Webhook Notifications for Sent Items folder
<p>I'm using the MS Graph API to set a web hook that notifies our app when a message hits a user's inbox, or sent folder.   The inbox notifications work great, but I can't seem to get notifications for the Outbox or Sent Items.   I'm getting a valid subscription ID, using the code below.   I'm just not sure why I'm not seeing any notifications come through.   </p>

<pre><code>        {
          "changeType": "created",
          "notificationUrl": "{myPath}",
          "resource": "/me/mailfolders('Sent Items')/messages",
          "expirationDateTime": "{myExp}",
          "clientState": "{usrEmail}"
        }
</code></pre>

<p>Also, is it possible to monitor 2-folders with one subscription?  By doing something like this...</p>

<pre><code>        { 
          "changeType": "created",
          "notificationUrl": "{myPath}",
          "resource": "/me/mailfolders('Inbox','Sent Items')/messages",
          "expirationDateTime": "{myExp}",
          "clientState": "{usrEmail}"
        }
</code></pre>