[Exim] Leading from header

Does anyone know how to let exim NOT place an leading from header
in emails virtually delivered?

so a header like:
--
>From diederik@??? Thu Oct 25 17:38:52 2001

Return-Path: <diederik@???>
Received: from dmclf.noc.nl.easynet.net (dmclf.noc.nl.easynet.net
[127.0.0.1])
        by dmclf.noc.nl.easynet.net (8.12.0.Beta19/8.12.0.Beta19) with
ESMTP id f9PFcqdZ003335
--
would become:
--
Return-Path: <diederik@???>
Received: from dmclf.noc.nl.easynet.net (dmclf.noc.nl.easynet.net
[127.0.0.1])
        by dmclf.noc.nl.easynet.net (8.12.0.Beta19/8.12.0.Beta19) with
ESMTP id
f9PFcqdZ003335
---

--
Diederik Damen - (Unix) Systems Engineer

Easynet Group Nederland BV
Siriusdreef 43-45, 2132 WT Hoofddorp The Netherlands
PO-Box 2034, 2130 GE Hoofddorp, The Netherlands
Tel +31 23 880 0088, Fax +31 23 880 0099
Email Diederik.Damen@???