[Mimedefang] Disable filter on smtp-auth

[Wesley M.A]

I found this :
http://www.novosial.org/mimedefang/macro-pass/index.html

Sounds to me good.
Steps 1,2 and 3 are done.
But at step 4, i don't know where to put this :

  if ($Features{"SpamAssassin"} and not exists $SendmailMacros{md_tag}) 
{
?
}

And what code to put at "?"...

If someone can help me on...

Thank you very much.

Cheers,

Wesley