Send automatically emails to an hidden recipient.
For example, add your address to recieve in your inbox every mail sent.
Activate macros in Outlook.
Push ALT + F11 and add the following code into “This Outlook Session”.
Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
Dim objMe As Recipient
Set objMe = Item.Recipients.Add("monadresse@provider.com")
objMe.Type = olBCC
objMe.Resolve
Set objMe = Nothing
End Sub