[Mimedefang] bypass mimedefang or milter

[Antoine Jacoutot]

Hi :)

I need some advice about an issue I'm having with mimedefang.
I'm using mimedefang with spamassassin and clam-antivirus. I works great 
  except for one thing: messages checks take time.
What I want to do is bypass the mimedefang checks when my authorized 
users send mail (either from my local LAN or from an @ip database 
populated by pop-before-smtp). I'm not using smtp-auth, I allow relaying 
based on @ip.
Now, should I add a setting directly in sendmail or is there some rules 
I could add to mimedefang so that when my users send mail from their MUA 
it skips the check and does not take 10 seconds per message (which is 
very frustrating on a LAN).

Thanks in advance for your answers and idea.
Regards.

Antoine