1. In Windows, create a certificate via Start > All Programs > Microsoft Office > Microsoft Office Tools > Digital Certificate for VBA Projects
  2. In Microsoft Outlook, open the VB editor and copy/paste the code below
  3. Replace your@email.here and save
  4. Click on Tools > Digital Signature
  5. Click on [Choose] and select your certificate
  6. Click OK, then save and close the VB editor
  7. Create the Outlook rule with [run a script] as action and select your macro
  8. That’s all folks !
Private Const TO_EMAIL As String = "your@email.here"
Sub ForwardAllEmail(theMail As MailItem)
	On Error GoTo EndSub
	Dim mailObj As Outlook.MailItem
	Dim item As Outlook.MailItem
	Set mailObj = Application.Session.GetItemFromID(theMail.EntryID)
	Set item = mailObj.Forward
	item.Recipients.Add (TO_EMAIL)
	Set item = Nothing      ' Set variables to null to prevent memory leaks
	Set mailObj = Nothing
	Exit Sub
  MsgBox "Error: " & Err.Description
End Sub