I'm using the Command-Line AntiVirus and it works great but my program needs to add to the .hdr file so some information gets passed to the client email in the header.  On the client side I'm using the Smartermail web interface so there are no third party programs getting in the way.  When I look at the email header in the web interface, the header looks nothing like the .hdr looked when it was modified.  There is a lot of extra smartermail lines and my line is gone.   Any thoughts?