The Outlook Connector doesn't support Monitoring or Accessing other Mailboxes. You will have to write your own component for working with other Mailboxes. Here's a code snippet that I've used in the past to test accessing other folders/mailboxes.

public void AccessAlternateMail()
{
	Microsoft.Office.Interop.Outlook.Application outlookObj;
	try
	{
	  outlookObj = (Microsoft.Office.Interop.Outlook.Application)Marshal.GetActiveObject("Outlook.Application");
	}
	catch
	{
	  outlookObj = null;
	}

	Microsoft.Office.Interop.Outlook.NameSpace ns = outlookObj.GetNamespace("MAPI");
	//Microsoft.Office.Interop.Outlook.MAPIFolder additionalInbox = null;
	Microsoft.Office.Interop.Outlook.Folders folders = ns.Folders;

	for (int i = 1; i <= folders.Count; i++)
	{
		Microsoft.Office.Interop.Outlook.MAPIFolder folder = folders[i];
		if (folder.Name.Contains("test@outlook.com")) 
		{
			Microsoft.Office.Interop.Outlook.Folders sub = folder.Folders;
			for (int j = 1; j <= sub.Count; j++)
			{
					MessageBox.Show(sub[j].Name);
			}
		}           
	}
}

Hi Mitchell,

Thank you so much. So i can use the output of this (subfolder name under a account "test@outlook.com" example inbox) and link it to RetrieveMail(Subfoldernamefromscript,unread) method.

Right?