[AMaViS-user] Adjust Amavis Headers in Messages?

[Carlos M. <car...@gm...>]

I was noticing today that when a message is sent to a user on my mail
server, it indicates 'Amavisd-new' in the headers as show below:

X-Virus-Scanned: Debian amavisd-new at iamghost.com
X-Spam-Flag: NO
X-Spam-Score: -0.999
X-Spam-Level:
X-Spam-Status: No, score=-0.999 required=5 tests=[ALL_TRUSTED=-1,
 TVD_SPACE_RATIO=0.001] autolearn=ham
Received: from mail.iamghost.com ([127.0.0.1]) by localhost
 (mail.iamghost.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id
 AmxrxsQmOdP1 for <ca...@ia...>; Wed, 17 Mar 2010 08:48:12 -0400
 (EDT)

Is it possible to remove the 'Debian' & 'amavisd-new' specifically
from the headers or mask it as something generic so I don't advertise
to my users & the world what my system us currently utilizing for
message scanning and filtering?

Thanks for any help and or info if this is possible and or not
suggested for some unforeseen reason.