I'm trying to change the email address in Send To field in Outlook when the user press send button. for example , if the current `Item.To` value = `'aaa@example.com'` it becomes `'bbb@example.com'`.

I can change the subject , but failed with Item.To ( is it security issue ? ) :

```
Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)

   If Item.Class <> olMail Then Exit Sub

   Item.To = "bbb@example.com"  ' Nope , It does not work
   Item.Subject = "New Subject" ' It works

End Sub

```

Thanks